Ishigaki Island Mangrove Spots: Discover the Best Tours and Experiences! - Japan Travel Sights

When people think of Ishigaki Island, stunning beaches and crystal-clear waters often come to mind. However, this island has another hidden natural gem: mangrove forests.

These mysterious plants, found only in tropical and subtropical regions, thrive in areas where rivers meet the sea, creating a rich and diverse ecosystem.

In this article, we’ll introduce the must-visit mangrove spots on Ishigaki Island and recommend tours that allow you to experience this unique environment up close. Let’s embark on a special journey surrounded by nature!

1. What Are Mangroves?

Mangroves refer to a group of trees and plants that grow in brackish water, where freshwater and seawater mix. Strictly speaking, there is no single tree called “mangrove”; instead, the term refers to a collection of plant species that have adapted to survive in these challenging environments.

In Japan, mangroves are primarily found in regions south of Yakushima Island in Kagoshima Prefecture, thriving in warm, subtropical climates.

Globally, there are over 100 species of plants that contribute to mangrove forests, and approximately 30 species can be found in Japan.

Key Features of Mangroves

• Ability to survive in salty environments: Unlike most plants, mangroves can absorb seawater and expel excess salt through their roots and leaves.
• Intricate root structures: These roots form unique, intertwined patterns that create a visually striking landscape.
• Rich biodiversity: Mangrove forests provide habitats for a wide variety of plants and animals.

Some mangroves worldwide can grow up to 60 meters tall, while in Japan, they typically reach around 20 meters. Despite their relatively smaller size, their appearance is still impressive and awe-inspiring.

In Ishigaki Island, you’ll mainly encounter species like Yaeyama Hirugi, Ohirugi, Mehirugi, and Hirugidamashi, with approximately 8 varieties found across the island.

2. Main Mangrove Spots in Ishigaki Island

① Miyara River (Miyara-gawa)

Miyara River is Ishigaki Island’s largest mangrove river, stretching approximately 1.5 kilometers and lined with lush mangrove forests. Its scenic beauty has earned it the status of a National Natural Monument, making it a must-visit destination for nature lovers.

In this area, you’ll find various mangrove species, including Ohirugi and Mehirugi, creating a unique and thriving ecosystem.

Miyara River is also conveniently located near Ishigaki’s city center, making it easily accessible. Activities such as canoeing and stand-up paddleboarding (SUP) are especially popular. Paddling through the calm river while surrounded by subtropical nature is an experience suitable for both beginners and seasoned adventurers.

Key Highlights:

• Scale: The largest mangrove river on Ishigaki Island, designated as a National Natural Monument.
• Activities: Popular for SUP and canoeing tours.
• Wildlife: Observe creatures like crabs and mudskippers thriving in the mangrove forest.

② Fukido River (Fukido-gawa)

Fukido River is another fantastic spot for exploring mangrove forests on Ishigaki Island.

While similar to Miyara River in offering rich mangrove experiences, Fukido River has its own unique appeal, with its narrow river width and striking rock formations along the riverbanks. The contrast between the lush green mangrove trees and rugged cliffs creates a breathtaking scene.

During tours, visitors can also explore “Enmusubi no Taki” (Lovers’ Waterfall), a picturesque spot believed to bring blessings to couples and visitors alike.

Whether by canoe or SUP, a trip along the tranquil waters of Fukido River promises both adventure and relaxation.

Key Highlights:

• Landscape: Narrow river with unique rocky formations.
• Activities: Explore by SUP or canoe.
• Scenic Spots: Visit “Enmusubi no Taki” and enjoy the serene beauty of the surroundings.

③ Nagura Bay (Nagura-wan)

Nagura Bay is a sprawling wetland area known for its mangrove cruises and stunning sunset views.

This spot offers a chance to witness “magic hour” — the moment when the sky and sea are painted in vibrant shades of orange and pink as the sun dips below the horizon. The reflection of this breathtaking scene on the calm waters of Nagura Bay creates a picture-perfect moment.

A visit to Nagura Bay at sunset is a memorable experience, perfect for unwinding and appreciating nature’s beauty.

Key Highlights:

• Landscape: Expansive wetlands with dense mangrove forests.
• Activities: Enjoy cruises and kayaking.
• Scenic Spots: Experience the magic of sunset over the water.

3. Wildlife in the Mangroves

① Fiddler Crab (Shio-Maneki)

Fiddler crabs are small creatures found on tidal flats. Male fiddler crabs have one oversized claw, which they wave in a motion resembling someone beckoning — hence the name “Shio-Maneki” (“beckoning tides”).

Species like Okinawa Hakusen Shio-Maneki and Hime Shio-Maneki, each with distinctive claw colors and shapes, can be observed in Ishigaki’s mangroves.

② Mudskipper (Minami Tobihaze)

Known locally as “Tontonmee,” mudskippers are amphibious fish. Despite being fish, they are not adept swimmers and instead hop across tidal flats using their pectoral fins.

Their playful movements are both fascinating and entertaining to watch, especially during low tide.

③ Great Egret (Chousagi)

The Great Egret is an elegant bird with striking white plumage. It stands about 70 cm tall and can often be seen wading gracefully along the riverbanks while searching for prey.

The contrast between their pure white feathers and the deep green mangrove backdrop creates a scene of serene beauty.

4. Recommended Mangrove Tours

① Miyara River Mangrove SUP/Canoe Tour

The Miyara River, home to a nationally designated Natural Monument mangrove forest, offers a popular half-day tour where visitors can fully enjoy the natural beauty of the mangroves.

Even if it’s your first time trying canoeing or stand-up paddleboarding (SUP), there’s no need to worry. Certified guides with water rescue qualifications will ensure your safety and provide clear instructions. While balancing on an SUP might seem challenging at first, a few minutes of guidance will have you confidently paddling in no time.

As you cruise leisurely along the river, you’ll have the chance to observe subtropical flora and fauna that are unique to mangrove ecosystems—offering an experience quite different from exploring the sea.

Additionally, the tidal flats around Miyara River are home to rare plant and animal species such as Kakatsugayu, Himegame, and Okinawa Sharinbai, making this area a treasure trove of biodiversity.

Surrounded by the lush greenery of the mangrove forest, paddling along the calm river on an SUP or canoe promises an unforgettable experience—one that will surely become a highlight of your trip to Ishigaki Island.

② Fukido River Mangrove & Nosoko Maape Trekking Tour

The Fukido River mangrove cruise combined with a trek up Nosoko Maape offers a unique half-day adventure, showcasing Ishigaki Island’s diverse natural beauty.

Nosoko Maape is the second-highest mountain on Ishigaki Island, and from its summit, you’ll be treated to a panoramic view of the deep blue sea and the vibrant green forest below. The hike is short—taking about 30 minutes—making it an accessible challenge for all ages.

On the water, SUP or canoe cruising along the Fukido River offers a peaceful yet adventurous way to explore the mangroves. The river’s compact size allows easy access to its upper reaches, making it ideal for beginners, families with children, and elderly visitors.

The mangrove forests along both sides of the river play an important role as natural barriers, acting as windbreaks, wave protectors, and flood control systems.

Unlike the ocean, the gentle and calm waters of the Fukido River create a tranquil setting where you can fully immerse yourself in nature.

Another advantage is that mangrove tours are rarely canceled, even during winter when strong northern winds may disrupt marine activities. This reliability ensures that your itinerary stays on track, providing peace of mind for travelers.

Take this opportunity to enjoy the beauty of Ishigaki Island’s mangroves and marvel at the stunning views from Nosoko Maape’s peak—a perfect combination of adventure and relaxation.

5. Essential Clothing and Gear for Enjoying a Mangrove Tour in Ishigaki Island

To fully enjoy a mangrove tour in Ishigaki Island, proper clothing and essential gear are crucial. Whether you’re paddling through calm waters on a canoe or SUP, or exploring muddy tidal flats, your clothing and equipment should be ready for water, mud, and sun exposure. Below are the key points to consider when preparing for your adventure.

1. Quick-Drying Clothing

During a mangrove tour, it’s common to get wet from splashes of water or dripping paddles while canoeing or doing SUP. Additionally, mud can easily stick to your clothes during shoreline walks or tidal flat exploration.

Recommended Clothing:

• Rash Guard: Quick-drying and offers excellent sun protection.
• Swimsuit: Wearing a swimsuit underneath ensures comfort even when wet.
• Lightweight Shorts or Leggings: Opt for materials that dry quickly and allow for easy movement.
• Long-Sleeved Shirt: Provides protection against sunburn and insect bites.

2. Marine Shoes

Mangrove forests and tidal flats often have rocky or muddy surfaces, making walking barefoot or in flip-flops risky.

Recommended Footwear:

• Marine Shoes: Designed for water activities, offering excellent grip and comfort even when wet.
• Outdoor Sandals with Heel Straps: Secure and stable for walking on uneven terrain.
• Socks: Wearing socks inside marine shoes can prevent sand from getting in and causing discomfort.

3. Waterproof Bag

On a mangrove tour, you’ll likely bring along valuables like smartphones, cameras, or wallets. Water exposure is inevitable, so proper waterproof storage is essential.

Recommended Waterproof Items:

• Dry Bag: Completely waterproof and perfect for carrying valuables securely.
• Waterproof Phone Case: A neck-strap design is practical and keeps your phone easily accessible.
• Ziplock Bags: Handy for organizing smaller items and adding an extra layer of water protection.

4. Sunscreen

The reflection of sunlight on the water surface makes it easier to get sunburned while on a mangrove tour. Skipping sunscreen can result in painful burns and skin damage.

Recommended Sun Protection Items:

• Waterproof Sunscreen: Choose a water-resistant formula for lasting protection.
• UV-Protective Hat and Sunglasses: Essential for blocking direct sunlight and reducing glare.
• After-Sun Care Products: Bring along aloe vera gel or moisturizing cream for soothing your skin after sun exposure.

5. Towel

Whether it’s after a dip in the water or simply drying off after the tour, a towel is an absolute must-have.

Recommended Towels:

• Quick-Drying Towel: Lightweight, compact, and dries rapidly.
• Face Towel: Convenient for wiping sweat or protecting your neck from the sun.
• Large Bath Towel: Useful for drying your entire body or as a mat for sitting on damp ground.

By preparing these essential items, you’ll be fully equipped to enjoy your mangrove adventure in Ishigaki Island comfortably and safely. With the right clothing and gear, you’ll be free to focus on the breathtaking scenery, unique wildlife, and peaceful surroundings of the mangrove forests. Enjoy your exploration!

6. Conclusion

Ishigaki Island’s mangroves offer an unforgettable experience, blending adventure, relaxation, and breathtaking natural beauty.

Whether you’re paddling through calm waters, observing unique wildlife, or marveling at a sunset over Nagura Bay, these moments will become cherished memories.

Embrace the magic of Ishigaki Island’s mangroves and let nature’s beauty rejuvenate your soul.