Mangrove forests

In Japan, mangrove forests covering large areas can be seen only in the Ryukyu Chain. Among them, the mangrove forest at the mouth of the Sumiyo River on Amami-Oshima Island is the most northern. On Iriomote Island, mangrove forests are found at the mouths of the Nakama River, the Urauchi River, and the Shiira River, etc.