Jōgashima (城ヶ島, Jōgashima) is an island in the municipality of Miura, Kanagawa Prefecture, Japan, off the southernmost tip of Miura Peninsula, facing Sagami Bay.
[1] It is home to the Jōgashima Lighthouse, the fourth oldest western style lighthouse to be built in Japan.
Jōgashima Park is located on the eastern part of the island.
[1] Jōgashima is connected to the mainland by a box-girder bridge since 1959, which was the longest in Asia in 1963.
[2]