The island has a length of 300 meters (980 ft) and a width of 140 m (460 ft). The highest point of the island measures 18 m (59 ft) in elevation. The total area of the island is approximately 0.017 km2 (0.0066 sq mi). Although called it is an island, it is connected to the mainland by a causeway constructed in 1942 so that people may walk to it from the shore.
Kabushima Shrine (蕪島 神社, Kabushima Jinja) is a small Shinto shrine located on Kabushima island. The shrine is a branch of the Itsukushima Shrine and is dedicated to Benzaiten. According to shrine legend, it was established in 1269 by local fishermen. The shrine burned completely down on 5 November 2015,[4] but it was rebuilt and expanded at the cost of 5 billion yen. The shrine reopened on 26 March 2020 after a small reopening ceremony. The ceremony was scaled down due to the COVID-19 pandemic.[5] The main festival of the shrine is held on the third Sunday of April.
^"蕪島神社、再建の社殿披露15年に焼失、青森・八戸" [Reconstruction of Kabushima Shrine, after it burned down '15, Aomori, Hachinohe]. The Nikkei (in Japanese). 26 March 2020. Retrieved 18 April 2020.