On Nakama River in Iriomote Island, a mangrove cruise aboard a sightseeing boat is a popular activity. This river boasts the largest mangrove watershed area in Japan, and you can leisurely tour the mangrove forest from the boat. Upstream on Nakama River, you can see mangrove trees such as Sakishima Suou no Ki, Yae-yama Hirugi, Ohirugi, and Mehirugi, which are said to be about 400 years old. In the midst of the rich nature, you can observe the ecology and plants of the mangroves while spending a relaxing time on the boat. It's a valuable experience for nature lovers and tourists alike. The mangrove cruise on Nakama River is a popular and unique activity that can only be enjoyed in Iriomote Island!
4.2