Kabushima

This island of about 1.8 hectares is famous as a black-tailed gull breeding ground. This is the only place to see black-tailed gulls building nests in Japan, and it allows up-close sights of chicks as well. The island was designated a National Natural Monument in 1922. From 1942 to 43, the former Imperial Navy worked to connect the island to the mainland. During the nesting season in mid-March every year, several tens of thousands of gulls come from the south, covering the island completely.