【Iriomote Island】Pinaisara Waterfall Tour

What is Pinaisara Waterfall on Iriomote Island?

Pinaisara Waterfall is located in the midsection of the Hinai River, which flows from Mount Tedou in central Iriomote Island. With a drop of 55 meters, it is the tallest waterfall in Okinawa Prefecture, mesmerizing visitors with its grandeur.

The waterfall’s name comes from the Okinawan words “Pinai”, meaning “beard,” and “Saara”, meaning “hanging down,” as the waterfall’s thin stream resembles a long, flowing beard.

Although the area below the waterfall consists of rugged rocks, a natural pool forms nearby, where visitors can swim and cool off.

 

How to Reach Pinaisara Waterfall

 

Route to the Waterfall

1. Kayaking – Paddle along the mangrove-lined Hinai River to the waterfall’s base.
2. Trekking to the Basin – Hike from the riverside to the waterfall’s basin.
3. Trekking to the Top – Continue the trek from the basin to the top of the waterfall.

Since the waterfall is located deep in the jungle, it is challenging for first-time visitors to reach it alone.

The adventure starts with a kayak trip up the Hinai River, followed by a 30-minute trek through the jungle to reach the waterfall’s base. Due to the complexity of the route, joining a guided tour is highly recommended for a safe and enjoyable experience.

What Activities Can You Enjoy at Pinaisara Waterfall?

Activity	Description
Kayaking	Paddle through the lush mangrove forests along the Hinai River.
Trekking	Hike from the riverbank to the waterfall (full-day tours continue to the top after lunch).
Waterfall Swimming	Swim and play in the massive natural pool at the base of the waterfall.
Outdoor Lunch	Enjoy a meal while admiring the stunning view of the waterfall.
Spectacular View	From the top of the waterfall, gaze upon the waterfall basin and the distant ocean.

 

Kayaking

The journey to the waterfall starts with a scenic kayak trip along the mangrove-lined Hinai River. Before setting off, the guide will give a brief lesson on paddling techniques, making it easy for beginners.

With stable canoes, even first-time kayakers can feel at ease. Enjoy gliding through the unique mangrove ecosystem, which is rarely seen in mainland Japan.

 

Trekking

Trekking through the jungle is an exciting part of the tour. Unlike mountain climbing, trekking involves exploring gentler trails rather than heading to a peak.

The lush subtropical jungle of Iriomote is home to rare plants and animals. Walking through this rich natural environment allows you to experience the beauty of forest bathing, refreshing both mind and body.

Waterfall Swimming

After paddling and trekking, cool off by jumping into the refreshing waterfall basin. This natural pool is perfect for a well-earned break after the physically demanding adventure.

 

Outdoor Lunch (Full-Day Tours Only)

Many full-day tours include a special outdoor lunch prepared by the guide using camping equipment. One of the highlights is Yaeyama soba, a local Okinawan specialty.

Enjoying a meal surrounded by untouched nature makes for a truly unforgettable experience.

 

The Best View on Iriomote Island

From the summit of Pinaisara Waterfall, you can take in a breathtaking panoramic view of Iriomote Island. On clear days, you may even spot Hatoma Island in the distance. Many visitors say that this is the best scenic viewpoint on the island, making it a must-visit attraction.

 

Recommended Clothing for the Pinaisara Waterfall Tour

Summer (March–October)

Recommended Clothing

Lightweight long-sleeve shirt & pants T-shirt, shorts, rash guard, leggings, swimsuit

Since Iriomote’s summer sun is strong, wearing a hat is essential. Bring sunglasses and sunscreen for protection.

While trekking through the jungle, you might encounter insects and sharp plants, so wearing lightweight long sleeves and pants is advisable. Opt for quick-drying or water-resistant clothing since you may get wet.

Winter (November–February)

Recommended Clothing

Nylon long-sleeve shirt & pants Rash guard for extra protection

Even in winter, UV rays are strong, so don’t forget sunscreen. A light rain jacket is useful for extra warmth.

✔️ Rental options available: Shoes, life jackets, and raincoats can be rented, so there’s no need to worry about packing too much.

Essential Items for All Seasons

Essential Items

Sunscreen Sunglasses Waterproof backpack Waterproof phone case Hat Drinks & snacks

 

Wildlife & Plants You May See on the Tour

Sakishima Suou Tree (Giant Board-Root Tree)

• Grows over 15 meters tall
• Known for its massive, board-like roots (buttress roots), which can be taller than a person
• Its unique shape showcases the wonders of nature

Mangrove Forests

During the kayak ride, you’ll pass through dense mangrove forests.

Iriomote Island is home to all 7 mangrove species found in Japan.

Sakishima Tree Lizard

• 20cm-long brown lizard, native to Iriomote, Ishigaki, and Miyako Islands
• Listed as Near Threatened on Japan’s Red List
• Cute appearance, often spotted during the trek

Sakishima Green Lizard

• Grows up to 30cm, making it Japan’s largest lizard species
• Bright green body, once popular as a pet
• Now a protected species, so please do not touch or catch them

Sakishima Harvestman Spider

• A long-legged relative of spiders
• Said to have inspired the character Kamaji from Spirited Away

Full-Day Kayaking & Trekking Tour

Adventure Highlights:
✔️ Kayak through mangrove forests
✔️ Trek to the waterfall basin
✔️ Swim in the waterfall pool
✔️ Enjoy a scenic outdoor lunch

 

Half-Day Morning Tour

A shorter half-day version of the full-day tour.

✔️ Same activities as the full-day tour but ends by 1:00 PM, giving you time for other activities in the afternoon.

 

Full-Day Mangrove Kayaking + Yubu Island Tour

✔️ Visit Pinaisara Waterfall first, then take a trip to Yubu Island.
✔️ Ride a traditional water buffalo cart while exploring the island.

📌 Note: Kayaking locations may change depending on the weather.

 

Full-Day Waterfall Trekking Tour

✔️ Trek to both the base and top of the waterfall.
✔️ Swim at the base and enjoy spectacular views from the summit.

 

Full-Day Kayaking & Canyoning Tour (Summer Only)

✔️ Combine kayaking with waterfall jumping and canyoning.
✔️ Perfect for a thrilling summer adventure.

📌 Note: Kayaking locations may change depending on the weather.

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