May-Jun: Kashima Gatalympic

The Kashima Gatalympic is a sports event held in the mudflats in late May to early June. The mudflats of the Ariake Sea have the largest tidal range in Japan and participants play in the mud while participating in an array of fun events that are unique to this bizarre sporting spectacle, such as a Gata Ski race using a unique fishing gear of the Ariake Sea called Gata Ski, bicycle racing, Gata flying game and a treasure hunt in the mudflats. Although it is a free admission event, the participants of the games are required to register in advance (Fee applies).