Heinaicho

This dive site, Heinaicho, is located within Hirauchi Cho on the Natsudomari Peninsula, which juts into Mutsu Bay in Tsugaru, Aomori, Japan. The underwater environment consists of a mix of rocky and sandy terrain. There is no specific historical information or unique navigation challenges mentioned, suggesting a straightforward and accessible dive experience. The clear waters, especially around Oshima Island, provide stunning views and an opportunity to explore a vibrant marine ecosystem. The marine life at Heinaicho is notably diverse, ranging from macro subjects to migratory fish. It is particularly renowned for its abundance of nudibranchs in spring, including species like cat-billed, emulonectes, hymenoptera, and eda. Other fascinating creatures you can encounter include catfish, dolphinfish, and the charming himeika (pygmy squid). This site offers a rich display of the lively underwater world characteristic of Mutsu Bay. Heinaicho is ideal for all levels of divers due to its shallow maximum depth of 5 meters and an average depth of approximately 2 meters. Early spring is highlighted as the best time to visit, as it brings forth a spectacular display of nudibranchs. Its calm, clear and shallow conditions also make it perfectly suited for snorkeling and freediving, offering an excellent experience for those who prefer breath-hold diving or exploring from the surface.