Yokosuka Travel Guide

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NEWS 2025.01.14

Reel in Flavor: Discover Yokosuka’s Hashirimizu Horse Mackerel

Located at the gateway to Tokyo Bay, Hashirimizu in Yokosuka is a celebrated fishing destination, known for its fast currents and nutrient-rich waters. These unique conditions nurture the prized Hashirimizu mackerel (走水アジ), valued for its firm texture and rich, savory fat.

While common horse mackerel peak from May to July, Hashirimizu mackerel thrive in the cooler months, reaching their prime from late autumn to early spring, especially between October and December. This seasonality makes them a sought-after winter delicacy in Japan.

Hashirimizu welcomes both seasoned anglers and beginners with accessible fishing charters, offering an ideal way to connect with nature. In this article, we’ll guide you through the excitement of fishing for Hashirimizu Horse Mackerel, share expert tips, and highlight the vibrant charm of Yokosuka. Whether you’re new to fishing or a seasoned pro, this adventure combines the thrill of the catch with the joys of savoring an iconic local specialty.

What Makes Hashirimizu Horse Mackerel Special?

A school of horse mackerel swimming gracefully underwater, with their silvery scales, streamlined bodies, and distinct yellow tails clearly visible.

(This is a representative image and may not depict Hashirimizu Horse Mackerel specifically.)

Located in Yokosuka City, Hashirimizu is among Japan’s top fishing grounds, renowned for its fast currents and nutrient-rich waters. These unique conditions nurture the Hashirimizu mackerel, prized for their firm texture and luscious, savory fat. With some fish growing over 40 cm, they are a sought-after catch for anglers.

In contrast to common horse mackerel, which peak from May to July after spawning, Hashirimizu mackerel flourish during the cooler months, from late autumn to early spring (October to March). Their prime season falls between October and December, when larger fish develop a creamy fat layer and translucent flesh, a hallmark of their exceptional quality.

The fast currents of Hashirimizu supply abundant food, shaping the fish’s firm, resilient flesh. Meanwhile, the colder autumn waters promote fat storage, enhancing both flavor and texture to their finest.

The Story Behind “Hashirimizu” Horse Mackerel

A scenic view of Hashirimizu Beach with clear blue waters, a coastal town, and Mount Fuji visible in the background.

The term “Hashirimizu” Mackerel originates from its fishing grounds, Hashirimizu, a name meaning “running water.” This area is situated in the Uraga Waterway, a vital passage at the entrance to Tokyo Bay. This name has two primary origins:

Mythological Origin

A serene view of Hashirimizu Shrine, surrounded by lush greenery, showcasing traditional Japanese architecture with sacred lanterns and wooden structures.

(Hashirimizu Shrine, a sacred site deeply tied to the legend of Yamato Takeru no Mikoto, is surrounded by nature and offers a glimpse into Japan’s spiritual heritage.)

In Japanese legend, Yamato Takeru no Mikoto (日本武尊), a heroic figure often likened to King Arthur in Western mythology, is said to have led his fleet across these waters. Their swift movement made it appear as though they were running on the surface. This tale is deeply connected to Japan’s rich folklore and includes the tragic story of Princess Ototachibana, who sacrificed herself to calm the sea.

Geographical and Tidal Origin
Situated in the narrow and fast-flowing Uraga Waterway at the entrance to Tokyo Bay, Hashirimizu occupies a strategic position vital to the development of the prized Hashirimizu mackerel. The name “Hashirimizu,” meaning “running water,” directly reflects the swift currents that define this unique fishing spot.

The strong currents, coupled with nutrient-rich tides, create an optimal environment for the mackerel. The continuous flow of water supplies abundant food, shaping their firm texture and rich fat content. This dynamic habitat also enhances their muscular structure and distinct flavor, making them a prized catch for anglers and culinary enthusiasts alike.

The Allure of Fishing for Hashirimizu Horse Mackerel

A close-up of a fishing rod bending slightly over calm sea waters, with a distant view of industrial structures on the horizon.

Fishing in Hashirimizu offers a fulfilling experience for anglers of all skill levels. While Hashirimizu Mackerel can be caught year-round, the summer months from July to September provide a distinct opportunity. By this time, they have finished spawning and regained their strength, giving them a firmer texture and richer flavor.

The warm summer waters and plentiful food sources significantly enhance the quality of the catch, making this season particularly appealing to fishing enthusiasts.

For seasoned anglers, the challenge of navigating fast currents adds an element of thrill and accomplishment. The opportunity to reel in a ‘big one’ solidifies Hashirimizu’s reputation as a prime destination for fishing enthusiasts.

Beginners are equally encouraged to try fishing here, thanks to the area’s many charters designed for first-timers. These charters provide guided support and easy-to-use equipment rentals, ensuring a smooth introduction to the sport. This unique blend of accessibility and challenge makes fishing for Hashirimizu Horse Mackerel a truly memorable experience for everyone.

How to Prepare for a Hashirimizu Horse Mackerel Fishing Trip

Essential Gear and Clothing

Fishing in Hashirimizu is beginner-friendly, thanks to the many charters offering rental rods and reels. Before your trip, consult your chosen charter to confirm available equipment and dress appropriately for the conditions.

Here’s what you should bring to ensure a safe and comfortable trip:

● Waterproof clothes: Stay dry and comfortable in case of splashes or unexpected rain.
● Gloves: Provide a better grip while protecting your hands from potential abrasions.
● Warm layers: Crucial for staying warm during chilly mornings or cooler months.
● Seasickness medication: A must-have if you’re prone to motion sickness, ensuring a more enjoyable experience.
● Sturdy shoes: Non-slip footwear to ensure safety and stability on deck.

Best Times and Seasons for Fishing

While fishing is possible year-round, beginners will find the best conditions on days with slower tidal movements, particularly during neap tides. Early mornings and slack tide periods are especially productive, offering optimal chances for a successful catch. Planning your trip around these favorable times can greatly improve your experience.

Tips for Navigating Strong Currents

● Adjust your line to fish approximately 3 meters above the seabed, where mackerel often swim.
● Use small, measured amounts of bait to gradually attract mackerel without overwhelming them.
● Practice patience and precise control to navigate the swift currents and maximize your chances of success.

Enjoy the Thrill of Fishing in Hashirimizu

Fishing Charters and Top Spots to Explore

Fishing charters operate from Hashirimizu Port and the nearby Shin Yasuura Port, providing easy access to prime fishing spots. To ensure a hassle-free experience, book in advance and opt for beginner-friendly charters that offer guided support.

Beginner-Friendly Techniques for Success

In Hashirimizu, adjust your line to approximately 3 meters above the seabed, where mackerel are most active. Monitor the current strength and fine-tune your bait placement to increase your chances of success.

What is the “Strike Zone”?

In fishing, the “strike zone” refers to the water depth where fish are most active. Targeting this zone, often called “finding the strike zone,” is key to a successful catch. For Hashirimizu Horse Mackerel, the strike zone is typically 3 meters above the seabed, where they are most likely to feed.

Pro Tips for Catching Big Horse Mackerel

To catch larger mackerel, avoid scattering excessive bait. Instead, use small, measured amounts to draw fish closer without spooking them. Once you’ve made a catch, bleed and cool the fish immediately to preserve its freshness and premium quality.

The Joy of Cooking: Delicious Ways to Prepare Hashirimizu Horse Mackerel

Renowned for its rich flavor and culinary adaptability, Hashirimizu Horse Mackerel elevates both traditional and modern dishes, from sushi to tempura.

The following recipes showcase its unique qualities, making it an exceptional ingredient for sharing Yokosuka’s authentic flavors with friends and family.

Traditional Japanese Dishes Featuring Hashirimizu Horse Mackerel

1. Sushi

close-up of horse mackerel sushi topped with chopped green onions, showcasing its shiny silver skin and fresh, tender flesh on a bed of vinegared rice.

Fresh Hashirimizu Horse Mackerel is perfect for sushi. Enjoy it as sashimi or atop vinegared rice in nigiri sushi, where its firm texture and rich flavor truly shine. For a special twist, lightly sear the skin to create “aburi sushi,” adding a smoky aroma that enhances its taste.

2. Tempura

A beautifully plated tempura assortment featuring crispy vegetables, shrimp, and fish

Lightly battered and fried, Hashirimizu Horse Mackerel tempura boasts a crispy exterior that contrasts beautifully with its juicy interior. Enjoy it with a sprinkle of salt or a squeeze of lemon for a refreshing finish.

3. Tataki (Seared Horse Mackerel)

A vibrant bowl of horse mackerel tataki donburi topped with chopped green onions, grated ginger, and shiso leaves, served with soy sauce, miso soup, and pickled radish.

Tataki, a traditional Japanese dish, features lightly seared mackerel thinly sliced for maximum flavor. Pair it with freshly grated ginger, chopped green onions (scallions), thinly sliced onions, and refreshing ponzu sauce. This combination highlights the fish’s natural sweetness and adds a light, zesty finish.

4. Japanese-Style Pasta

Savor the fusion of flavors: Japanese-style horse mackerel pasta, combining fresh fish, soy sauce, olive oil, and vibrant vegetables for a unique dining experience.

For a fusion twist, sauté mackerel fillets with garlic, olive oil, and soy sauce, then toss them with pasta. This harmonious blend of flavors bridges Japanese and Western cuisines beautifully.

How to Make the Perfect Aji Fry

A close-up of crispy fried Hashirimizu Horse Mackerel served with tartar sauce, a lemon wedge, and fresh greens on a decorative plate.

If you prefer cooked fish, Aji Fry made with Hashirimizu Horse Mackerel is a must-try dish. This classic recipe highlights the mackerel’s fresh flavor and delicate texture. While available year-round, Hashirimizu mackerel are at their fattest and most flavorful from July to September.

Ingredients (Serves 2)

● 2 fresh Hashirimizu Horse Mackerel, filleted and deboned
● Salt and pepper, to taste
● Flour, beaten egg, and breadcrumbs for coating
● Vegetable oil for frying
● Optional: tartar sauce, lemon wedges, or a sprinkle of salt for serving

Instructions

① Preparation
Season the filleted mackerel with salt and pepper to enhance its natural flavor.

② Coating
Dredge each fillet in flour, dip it into the beaten egg, and coat thoroughly with breadcrumbs for a crispy finish.

③ Frying
Heat the oil to 180°C (356°F). Fry the fillets for 1–2 minutes on each side, or until golden brown and perfectly crispy.

④ Serving
Drain the fillets on paper towels to remove excess oil. Serve immediately with tartar sauce, lemon wedges, or a sprinkle of salt for added zest.

Pro Tip: For the best results, use small portions of bait when fishing to attract larger mackerel without overwhelming them. This ensures a premium catch for your Aji Fry.

Helpful Information: Access and Choosing a Fishing Charter

How to Get to Yokosuka

Located just an hour from Tokyo, Yokosuka is a convenient day-trip destination for fishing enthusiasts. Its easy accessibility makes it perfect for both casual outings and dedicated fishing trips.

By Train
Take the Keikyu Line from Shinagawa Station in Tokyo for a scenic 1-hour ride to Yokosuka-Chuo Station. From the station, a 10-minute taxi ride will bring you to either Hashirimizu Port or Shin Yasuura Port. Trains run frequently, making scheduling your trip hassle-free.

By Car
Drive from central Tokyo via the Yokohama-Yokosuka Road, and reach Yokosuka in about 1 hour, traffic permitting. Ample parking is conveniently located near both Hashirimizu Port and Shin Yasuura Port, ensuring a stress-free start to your fishing adventure.

Tips for Selecting a Fishing Charter

Yokosuka offers a variety of fishing charters designed for both beginners and seasoned anglers. If you’re a first-timer, look for a charter that includes guidance, rental equipment, and beginner-friendly instructions. Be sure to confirm available services, rental options, and fees ahead of time to avoid surprises and ensure a seamless experience.

Cost Estimates and Booking Tips

Expect to pay approximately 8,000 yen for a fishing trip, with an additional 7,000 yen for rental equipment if needed. Prices may vary depending on the season and services offered, so it’s best to confirm costs when booking. For peak summer months, booking early is highly recommended to secure your spot.

Experience the Charm of Hashirimizu Horse Mackerel Fishing

Hashirimizu Horse Mackerel is a true symbol of Yokosuka’s rich maritime heritage, blending adventure, tradition, and flavor. Whether you’re a beginner or an experienced angler, fishing in Hashirimizu promises not only a rewarding catch but also unforgettable memories. Don’t miss the chance to indulge in this iconic local delicacy while soaking in the stunning natural beauty of Yokosuka’s coastline.

Contact Information

For inquiries about fishing charters and local attractions, please contact:

Yokosuka Action Committee for Attracting Visitors and Promoting Appeal

11 Ogawa-cho, Yokosuka, Kanagawa 238-8550, Japan
Phone: +81-46-822-9672
Email: to-ec@city.yokosuka.kanagawa.jp

Important Tips and Advice

About Fishing Charters

Fishing charter companies offer varying pricing and services. It’s recommended to contact operators directly to get the most up-to-date information and choose the best option for your needs.

Recommended Gear and Essentials

Prepare for your trip by packing essential items such as:

● Waterproof clothing to stay dry during splashes or rain.
● Gloves for better grip and hand protection.
● Warm layers for cooler weather, especially in the early morning.
● Seasickness medication for a comfortable experience.
● Sturdy, non-slip footwear for safety on deck.

Other Important Considerations

Weather and sea conditions can change rapidly, so always confirm your fishing trip status with the charter operator before departure. Additionally, practice sustainable fishing by taking only what you can responsibly consume, preserving the environment for future generations.

Top Fishing Spots in Yokosuka: Cast Your Line for Success

Umibe Tsurikouen offers family-friendly fishing from a long pier with scenic views. Explore Sarushima Island by ferry for diverse fishing spots and historical sites.

Fishing from the 500-meter pier at Yokosuka's Umibe Tsurikouen (Seaside Fishing Park), with views of Sarushima Island and the Boso Peninsula.

Umibe Fishing Park
(Umibe Tsurikouen)

Enjoy fishing with stunning views of Sarushima Island and the Boso Peninsula from a 500-meter-long boardwalk. This family-friendly park offers grassy play areas for children, making it a perfect destination for a day out. Fishing is available year-round, and free fishing advice is available from manufacturer staff on one Sunday each month (9:00-16:00) from April to November. No reservations are needed for individual use, but groups should inquire in advance.

Scenic view of Sarushima Island, Yokosuka, a popular spot for fishing with diverse coastal terrain and historic remnants of its past as a naval fortress, including brick tunnels and gun emplacements.

Sarushima Island

A short 10-minute ferry ride from Mikasa Pier takes you to Sarushima Island, a prime fishing spot for sea bass, Japanese whiting (kisu), and more. With diverse fishing opportunities from rocky shores to sandy beaches, it’s a great place for anglers of all levels. This historic island, once a naval fortress closed to the public until the end of World War II, boasts preserved military structures like brick tunnels and gun emplacements, offering a unique blend of fishing and exploration.

Yokosuka’s Culinary Delights: Where to Eat After a Day on the Water

Things to Do in Yokosuka: Explore the City’s Charm

Yokosuka Museum of Art

A seaside museum located in one of the best locations in the Miura Peninsula, ranked in the top 5 scenic museums nationwide.

Hashirimizu Shrine

This is a Shinto shrine dedicated to Yamato Takeru no Mikoto and Oto Tachibana Hime no Mikoto as deities.

Kannonzaki Prefectural Park & Lighthouse

In the Meiji era (1868-1912), the Kannonzaki Park was a military fortress. There are historical heritages where shows the situation at that time today in this park.

West Kano Shrine

It is also popular as a power spot, and it is said that a wish will come true if you put magatama beads of the West Kano Shrine in an amulet case of the East Kano Shrine and wear it on you.

Uraga no Watashi (Ferryboat)

Nicknamed “ponpon-sen,” Uraga’s ferry has been a symbol of Uraga, connecting the east and west Kano shrines.

East Kano Shrine

It is also popular as a power spot, and it is said that a wish will come true if you put magatama beads of the West Kano Shrine in an amulet case of the East Kano Shrine and wear it on you.

Hashirimizu Beach & Hashirimizu Reservoir

Enjoy Hashirimizu Beach for fishing and swimming, then visit the beautiful water source, especially beautiful in the spring (late March-early April). Try Verney’s Water and explore local history.

Hashirimizu Lower Gun Battery Site

The “Hashirimizu Lower Gun Battery Site” was completed during the Meiji era and stayed operational until the end of the war, so almost all of its artifacts such as gun platforms, ammunition depot, and barracks have been maintained in a good condition.

Tateishi Park

This is known for its beautiful coastal scenery, including Tateishi, an unusually shaped massive rock protruding from the beach.