What is Iriomote Island — Okinawa's Last Frontier?
Iriomote Island (Iriomote-jima) is a large island in the Yaeyama Islands of Okinawa Prefecture, second only in size to Okinawa's main island,
yet 90% of it is covered by untouched jungle, earning it the nickname "Japan's last wilderness."
What makes Iriomote Island special
- A treasure trove of nature registered as a World Natural Heritage site!
- A precious ecosystem including the Iriomote cat!
- Mangrove forest tours by kayak!
- Trekking to hidden beaches and waterfalls!
It's a unique place where you can fully enjoy nature and experience the original landscape of Okinawa.

Top 5 Sightseeing Spots on Iriomote Island
1. Subtropical paradise — Nakama River Mangrove Cruise
Nakama River (Nakamagawa) is the largest mangrove river on Iriomote Island.
Taking a "mangrove cruise" along this river is the perfect activity for enjoying the island's natural environment!
Highlights
- Observe one of Japan's largest mangrove forests up close!
- If you're lucky, you may spot wild birds and crabs!
- Guided tours teach you about Iriomote's ecosystem!
It's easy even for beginners to enjoy, so it's recommended for families!
2. Secluded beach — Hoshizuna Beach
Hoshizuna Beach (Hoshisuna no Hama) is a beach famous for sand grains shaped like little stars.
It's a beautiful coastline that retains the untouched nature typical of Iriomote.
How to enjoy
- Look for the star-shaped sand grains!
- Snorkel and play with colorful tropical fish!
- The shallow beach is great for families with children!
White sand and emerald-green waters make this a very attractive spot!
3. Spectacular waterfall — Pinaisara Falls
Pinaisara Falls is the tallest waterfall on Iriomote Island (about 55 m).
Located deep in the jungle, it's common to reach it while enjoying kayaking and trekking.
Trekking information
- Paddle by kayak along the river, then trek to the falls!
- Playing in the plunge pool at the base of the falls feels great!
- Climb upstream for breathtaking views!
It's a perfect spot to fully appreciate Iriomote's great outdoors!

4. Yubu Island — Enjoy mangroves and water-buffalo cart rides
Yubu Island (Yubu-jima) is a small island you reach from Iriomote Island by water-buffalo cart.
Once inhabited, the island is now a botanical garden that attracts many visitors.
Highlights
- Relax on a water-buffalo cart ride to the island!
- Enjoy tropical flowers in the botanical garden!
- There is also a butterfly garden where butterflies flutter about!
It's a very popular spot for experiencing traditional Okinawa-style attractions!
5. The phantom beach — Barasu Island
Barasu Island (Barasu-jima) is a small uninhabited island made entirely of coral fragments.
Its shape changes with the tides, making it a mysterious and magical spot.
Recommended activities
- Snorkel in crystal-clear waters!
- You might even swim with sea turtles!
- Explore the area by kayak or SUP!
Since it can only be reached by boat, joining a tour is the usual way to visit.

Practical Information for Travelers
1. Getting to Iriomote Island
From mainland Japan
- There are direct flights to Ishigaki from Tokyo, Osaka, and Fukuoka
- From Ishigaki, a ferry takes about 45 minutes to 1 hour
From Ishigaki Island
- From Ishigaki Port, ferries take 45 minutes (to Uehara Port) or 1 hour (to Ohara Port)
- Several departures run daily; reservations are recommended!
2. Recommended accommodations
Resort hotels
- "Eco Village Iriomote" (an eco-resort set in nature)
- "Iriomote Jungle Hotel Painumaya" (a hidden lodge among the mangroves)
Budget-friendly stays
- "Pension Hoshi no Suna" (right in front of Hoshizuna Beach!)
There are plenty of places to stay where you can fully enjoy Iriomote's great outdoors!

Summary and Frequently Asked Questions
Summary
✅ Iriomote Island is Okinawa's "last wilderness"!
✅ Untouched jungles and a rich ecosystem are its main attractions!
✅ Mangrove kayaking and snorkeling are popular activities!
✅ Accessible by ferry from Ishigaki Island!
Frequently Asked Questions
Q: How many days do you need to sightsee on Iriomote Island?
A: At least one night, but ideally two nights or more. Day trips are possible, but staying overnight lets you enjoy the island at a relaxed pace.
Q: Do I need a rental car on Iriomote Island?
A: The island is large, so a rental car or rental scooter is convenient. There are buses, but they run infrequently.
Q: What is the best season to visit Iriomote Island?
A: April to October is the best time! Winters are cooler, but activities are available year-round.
Enjoy a nature-filled adventure on Okinawa's Iriomote Island!