Let's get to know the charm of Iriomote Island's rivers! We also introduce recommended tours!
Table of Contents
- 1 Explanation of the charms of the rivers of Iriomote Island, a World Natural Heritage site!
- 2 Characteristics of Rivers in Iriomote Island
- 3 Selected rivers in Iriomote Island are introduced!
- 4 Activities you can enjoy in the rivers of Iriomote Island!
- 5 What kind of creatures are there in the rivers of Iriomote Island?
- 5.1 Eviota japonica (species of pygmy goby found in Japanese waters)
- 5.2 freshwater prawn (any species in the genus Macrobrachium
- 5.3 Siberian thrush (Turdus sibiricus)
- 5.4 marbled eel
- 5.5 Okinawa bay parrotfish (Phyllostoma okinawae)
- 5.6 tree nymph butterfly (Idea leuconoe)
- 5.7 seven-spotted ladybug (Coccinella septempunctata)
- 6 summary
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Explanation of the charms of the rivers of Iriomote Island, a World Natural Heritage site!
Iriomote Island has the longest river in Okinawa and the largest mangrove forest in Japan, and is dotted with many waterfalls and ravines.
Therefore, a variety of activities are held, allowing visitors to fully enjoy the charm of nature, which is different from that of rivers on the mainland.
◆Active travelers planning to travel.
◆Iriomote Island's river activities for those who want to enjoy
◆Those looking for a safe and fun experience for the whole family
◆Iriomote Island ecology and nature enthusiasts.
Please enjoy the unique river scenery and adventure of Iriomote Island♪
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Characteristics of Rivers in Iriomote Island
The most important characteristic of the rivers of Iriomote Island is,Approximately 701 TP3T of mangroves in JapanThe point is that a cluster of
SUP and canoe cruising tours are particularly popular on this mangrove river, and cruising while surrounded by the majestic jungle is as exhilarating as a scene from a movie.
It is a special adventure that is hard to experience in other Yaeyama Islands, so please try it when you visit Iriomote Island!
↓Click here for the Iriomote Island mangrove holding tour special ☆.
Selected rivers in Iriomote Island are introduced!
1. Urauchi River
The Urauchi River, the longest river in Okinawa, is characterized by its wide width and dense subtropical virgin forest. Upstream of this river is the "100 Waterfalls of JapanThe Mariyudu Falls, which was selected as one of the "Best Waterfalls in the World," and the 200-meter-long Campilay Falls, called the Seat of God, allow visitors to experience the grandeur of nature.
The observatory near the mouth of the river is ideal for sunset and stargazing, and the lack of streetlights makes it possible to enjoy a star-filled sky.
If you are so inclined, why not experience firsthand Okinawa's largest river and its rich natural environment through a cruising experience?
Location: Aza Iriomote, Taketomi-cho, Yaeyama-gun, Okinawa
Access: About 10 minutes by car from Uehara Port
Parking: Available
Meals (nearby): None
Toilet: Yes
2. Nakama River
The Nakama River, with the largest mangrove community in Japan, is home to a diverse array of plants and animals.
At low tide, the entire mangrove root system with its unique shape is revealed, and tidal flats also appear, providing a different view from the usual.
Through the nature of the Nakama River, which changes with the time of day, please feel the real thrill of the unique nature of Iriomote Island.
Address: Taketomi Town, Yaeyama County, Okinawa Prefecture
Access: 15 minutes on foot from Nakama Port
Parking: No
Meals (nearby): None
Toilet: No
3. Omija River
Omija River, with its unique topography and mangrove forests, is a popular destination for river activities such as shower climbing. Located between the Uehara and Ohara areas, the nearby Omija River Road Park, with its observatory and boardwalk, is a great place to take a break from driving and activities.
From the quiet water surface area at the mouth of the river to the mangrove forests upstream, each area offers a different landscape and is pleasing to the eye.
Address: Aza, Taketomi Town, Yaeyama-gun, Okinawa, Japan
Parking: None
Toilet: None
4. Hinai River
Hinai River is located in the western part of Iriomote Island and is calledJapan's 500 Most Important WetlandsThe river is 800 meters long and has an area of 3,200 hectares of mangroves.
It branches off from the Mare River, and down the main stream is the largest drop-off in Okinawa Prefecture.Pinaisara FallsThe waterfall is long and looks like an old man's beard. Pinai" means beard and "sahra" means down, and the waterfall looks like the beard of an old man.
The waterfall basin is inhabited by tenagaebi and funeama mussels, making it a great place for observing creatures and playing in the water. Pinaisara Falls is also a must-see spot when visiting Hinai River, as you can see Barasu Island, Hatoma Island, and the emerald green ocean from the top of the falls!
Address: Iriomote Island, Okinawa Prefecture
Parking: None
Toilet: None
5. Yutun River
The Yutun River is a 20-minute drive from Uehara Port, via shower climbing and jungle trekking from the river mouth,Yutun Falls, a three-stage waterfall with a 35-meter dropYou can access the
Although the course is a bit strenuous, it is an ideal activity spot for those who are confident in their physical strength.
During the summer season, activities are plentiful, with visitors wading through vegetation in the strong sunlight to reach waterfalls, and playing in the waterfall pools and potholes to soothe their burning bodies. In addition, colorful coral reefs can be seen near the mouth of the Yutun River,A spot where you can enjoy the charm of the sea and river of Iriomote Island at the same time.It is!
Location: Aza Takana, Taketomi-cho, Yaeyama-gun, Okinawa
Access: 20 minutes by car from Uehara Port (to the mouth of the river)
Parking: None
Meals (nearby): None
Toilet: None
6. Geeta River
Geeta River is located in the northwestern part of Iriomote Island and is a small river characterized by the stair-like "Geeta Falls".
There are three waterfalls on this river,Famous as a power spotIt is. There is a 10-meter-high waterfall and a unique staircase-shaped waterfall, and the scenery of clear water cascading down in the jungle is very beautiful.
Bathing in the waterfall water all over your body and swimming in the waterfall basin will refresh you both physically and mentally!
Location: Uehara, Taketomi Town, Yaeyama County, Okinawa Prefecture
Access: 15 minutes by car from Uehara
Parking: None
Meals (nearby): None
Toilet: None
7. Shira River
The Siira River is located on the opposite side of the Myra River, which will be introduced later.
The estuary is shallow, and the mudflats are home to southern flying foxes, maracuda, and mangrove jacks. In addition, mangrove colonies can be seen upstream, creating a rich ecosystem.
Although not the origin of its name, the Shira River can also be used to catch dolphinfish.
Location: Taketomi-cho, Yaeyama-gun, Okinawa, Japan
Parking: None
Toilet: None
8. Nishida River
The Nishida River (Sangara) has the Sangara Falls, which boasts an abundance of waterfalls 30 meters wide upstream, and is a popular hidden spot with its beautiful scenery.
The waterfall basin is also known for its abundance of tenaga shrimps, making it a perfect place to observe nature and enjoy the scenery.
Address: Uehara, Taketomi-cho, Yaeyama-gun, Okinawa
Access: 8 minutes by car from Uehara Port (tour information only)
Parking: None
Meals (nearby): None
Toilet: None
9. Myra River
The Myra River (Maera River) is located approximately 10 minutes by car from Ohara Port and 40 minutes from Uehara Port, and is characterized by a unique river shape with a gentle S-shaped curve.
Cruising by kayak, you can enjoy the changing scenery at every bend, and your mind is always racing with new discoveries. The short distance upstream makes it easily accessible.
In addition, there is a small waterfall and observatory upstream, making it a perfect spot to enjoy the spectacular view!
Address: Aza-Komi, Taketomi-cho, Yaeyama-gun, Okinawa
Access: 10 minutes by car from Ohara Port, 40 minutes by car from Uehara Port
Parking: None
Meals (nearby): None
Toilet: None
Activities you can enjoy in the rivers of Iriomote Island!
Mangrove SUP
SUP (stand-up paddleboarding) is a fashionable activity that originated in Hawaii, where people enjoy walking on the water by riding a board and paddling on the surface with paddles.
Most often done in the ocean, Iriomote Island is an ideal spot for river SUP! A walk on the water going along the river surrounded by jungle is very relaxing and has a forest bathing effect.
In addition, subtropical vegetation acts as a windbreak and tide barrier, making it possible to enjoy river SUP all year round, even for first-timers.
↓Recommended Mangrove SUP Tour↓.
↓Learn more about ↓SUP
Mangrove/River Kayaking
Not only SUP but also canoe cruising experience can be enjoyed in Iriomote Island.
Participating in the tour will be a learning experience, as you will receive detailed explanations about the types of plants native to that river and the origins of its nature. Please join the canoe tour and enjoy the rich nature of Iriomote Island!
↓Recommended mangrove canoe tours↓.
↓Learn more about kayaking
canyoning
Among the Yaeyama Islands, Iriomote Island is popular for activities that take advantage of its abundant rivers and waterfalls, with canyoning attracting particular attention.
Canyoning is an adventurous activity that involves descending through the highs and lows of a canyon, and along the way you can enjoy natural waterslides, natural pools, and even a dive into a waterfall basin. It is one of the most exhilarating river activities!
With safety gear and a full-time guide, adults as well as small children can participate safely.
↓recommended canyoning tours↓.
↓Learn more about canyoning
Pinaisara Falls Canoeing
If you come to Iriomote Island, the spot you cannot miss is ".Pinaisara FallsThe Hinai Falls is the largest waterfall in Okinawa Prefecture with a drop of 55 meters. To reach this 55-meter waterfall, the largest drop in Okinawa Prefecture, visitors first canoe cruise down the Hinai River, then trek through the jungle to enjoy nature.
You can also enjoy natural landscapes not found on the mainland, such as huge trees of unusual shapes and giant beans, and the clear water flowing down from 55 meters above is a spectacular and unforgettable experience.
↓Recommended Pinaisara Falls Tour
↓Learn more about Pinaisara Falls
Urauchi River Cruising
On the Urauchi River, the longest river in Okinawa, visitors can enjoy a cruising experience on a sightseeing boat.
This is a luxurious experience that allows visitors to enjoy the magnificent jungle scenery as they leisurely travel along the wide river!
The tidal range is so great that at high tide, seawater rises up to 8 km upstream, and the river has a rich diversity of life due to the mixture of seawater, fresh water, and brackish water. Please enjoy observing the creatures while cruising.
↓Learn more about ↓cruising
shower climbing
Shower climbing is an activity similar to canyoning, but it is characterized by the fact that it involves climbing a stream, as opposed to canyoning, which involves descending a stream.
As the name implies, the rapids are climbed by choosing the right footholds and using ropes.Upstream ActivitiesOh my god!!!
Because you are going against a mountain stream, it requires more physical strength than canyoning, and you need to be prepared to get wet all over. The water becomes clearer the further upstream you go, and the clearer the current, the more pleasant it is, so please give it a try!
↓Recommended shower climbing tours↓.
↓Learn more about shower climbing
What kind of creatures are there in the rivers of Iriomote Island?
Eviota japonica (species of pygmy goby found in Japanese waters)
The southern flying goby is tropical and is a species of goby that inhabits tidal flats and mangroves in the brackish waters of rivers in warm climates such as Tanegashima, Yaku Island, and the Ryukyu Islands. It also has a wide distribution so that it can be seen on beaches near brackish water. It is very similar to the closely related flying goby, but can be distinguished by the spiny anterior portion of its first dorsal fin and the dark color band.
freshwater prawn (any species in the genus Macrobrachium
The tenaga shrimp is a common species of fresh and brackish water in warm regions with a body length of around 10 cm. it is most common during the rainy season from April to August, and spawns from May to early fall. They are bilaterally migratory, with larvae going to the sea, growing up, and then returning to rivers. They are carnivorous shrimps that feed mainly on aquatic insects, small fish, and animal carcasses.
Siberian thrush (Turdus sibiricus)
Sawtooth crabs are a species of blue king crab that inhabit the mangroves of Okinawa and Lake Hamana in Shizuoka. Its leg structure is basically the same as that of the blue king crab, but its shell is fan-shaped with saw-like thorns instead of diamond-shaped like the blue king crab. The left and right scissors have different shapes and are used for different purposes: one to grind and crush food, and the other to tear it.
marbled eel
The giant eel is a tropical eel species that lives in areas influenced by the Kuroshio Current. They are carnivorous, feeding on small fish, shellfish, and crustaceans.
Okinawa bay parrotfish (Phyllostoma okinawae)
As the name implies, the Okinawa spiny dogfish lives in tidal flats with a carapace width of about 2 cm in warm climates, mainly in Okinawa but also on Amami-Oshima Island, the northern limit of its habitat. Overseas, it is distributed from Taiwan, the Philippines, the Malay Peninsula, Singapore to northern Australia and Papua New Guinea. Males have scissors of different sizes, and when the tide comes in, the larger scissors swing in a way that looks like they are imitating the tide, hence the name "lionfish.
The body of this species is white or yellow, and the scissors are much larger in relation to the body than in other Blue-footed boobies. It also has a long eye pattern and a black-and-white carapace.
tree nymph butterfly (Idea leuconoe)
The giant tiger butterfly is the largest butterfly in Japan. In Japan, it is found only in Okinawa, and can be seen flying in mountains and satoyama. It is also called the "lady of the tropics" because it is so beautiful in flight.
On Yubu Island, there is a butterfly garden where chicks of the giant tiger butterflies are cultivated, which can be visited throughout the year. It is said that the chrysalis of the giant tiger butterflies glows golden and brings happiness when you see it, so please visit there when you come to Iriomotejima or Yubujima.
seven-spotted ladybug (Coccinella septempunctata)
The Okinawa anadijako is a killer whale that lives in the mangroves of Okinawa, belonging to the family of crustacean-net shrimp, Crustaceanidae. As its name suggests, it lives in burrows about 2 meters deep. Since they are nocturnal, they rest in their burrows during the day.
summary
How about the rivers in Iriomote Island? There are many unique rivers such as Urauchi River, the longest river in Okinawa Prefecture, and Nakama River, which has the largest mangrove in Japan, and you can enjoy various activities in each of them. Each river has its own unique charm, so be sure to try the activities that interest you.
Thank you for reading to the end.
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