第1回 沖縄琉球伝説“浜比嘉島”オープンウォータースイムレース

The 1st Okinawa Ryukyu Legend “Hamahiga Island” Open Water Swim Race is an open water swimming event held at Hamahiga Beach on Hamahiga Island in Uruma, Okinawa Prefecture. It is listed as part of the 2026 Open Water Swim Series, a series of swimming races held in natural environments such as seas and lakes. The event name highlights the local Okinawan and Ryukyu setting, and the venue places the race on an island beach in Okinawa’s coastal environment. Based on the provided event listing, the race is presented as a nature-based swim competition with Hamahiga Island as its defining location.