Sumiyo River Mangrove Forest

Nestled in the southeastern part of Amami Oshima, Sumiyo Town is a lush region where clear mountain streams weave into beautiful rivers that flow into the sea. At the mouth of the Sumiyo River lies an expansive mangrove forest, its deep green trees stretching as far as the eye can see. This unique brackish water environment, shaped by the ebb and flow of the tides, hosts a vibrant ecosystem that captivates many visitors seeking to experience its vast, natural beauty.

Exploring the mangrove forest from the water reveals a living maze of greenery pulsating with life. During high tide, water rises to embrace the roots of the trees, creating a mystical sensation of a forest floating atop the water’s surface. When the tide recedes, the intricate roots emerge, offering a chance to observe bustling small creatures among the mudflats. The silence, broken only by the gentle rustle of wind and birdsong, provides a peaceful escape from the noise of everyday life. Even first-time visitors can immerse themselves fully in Amami’s rich natural world with all their senses.

What makes the Sumiyo mangroves truly special is how the scenery transforms dramatically with the changing tides, revealing different faces of this remarkable habitat. The area is home to distinctive plants and wildlife, including crabs and various wild birds, that thrive in this unique ecosystem. Surrounded by an endless canopy of green and under a vast open sky, visitors find themselves deeply connected to nature, experiencing moments of calm and renewal in a tranquil setting.