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Keramashoto NP, Okinawa
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Off Amuro’s east coast, coral clusters attract large schools of iridescent blue-green damselfish. The Ministry of the Environment singles out this reef for its shimmering fish swarms.
At spring tides, a white sand strip can briefly appear to link Amuro with Zamami. It looks walkable, but local guides warn that the currents make crossing dangerous.
Amuro is uninhabited now, but a 2011 archaeological survey found pottery and shells scattered on its southeast side. The finds suggest people may have lived here in prehistoric times.
Amuro’s empty shores once supported farms and grazing: after World War II, people from the Kerama Islands grew sweet potatoes here and grazed cattle.
Amuro is actually two hilly landforms joined by a tombolo—a natural sand-and-gravel neck. The larger southern part rises to 98.9 m; the slimmer northern part reaches 58 m.
At Amuro’s northern end, beach sediment has hardened into natural beachrock, while parts of the southern and eastern shores are sea cliffs. This small island has strikingly varied coasts.
Amuro’s western shallows were a bright spot in the Ministry’s 2025 reef survey: coral cover increased substantially there, where the impact of bleaching had been relatively small.
