This dive site, Jogashima, is a highly accessible diving location situated at the southernmost tip of the Miura Peninsula in Kanagawa Prefecture, Japan, uniquely positioned on the border of Tokyo Bay and Sagami Bay. Its convenient proximity to the greater Tokyo area has solidified its reputation as an exceptionally popular destination for day trip diving. Divers can easily reach the site by crossing a dedicated bridge, indicating straightforward shore access, making it a hassle-free option for a quick escape into the underwater world.
The marine biodiversity at Jogashima is particularly remarkable for macro-enthusiasts. In the spring, divers are often treated to the sight of over 30 distinct species of nudibranchs during a single dive, showcasing an incredible array of vibrant colors and intricate forms. Beyond these charismatic sea slugs, the site is also home to other fascinating macro-organisms including dangling fish, delicate seahorses, various snails, elusive cuttlefish, and the charming moss damselfish. For those who enjoy larger congregations of marine life, the site also features impressive schools of black marlin and lobster fish.
For an optimal diving experience, the spring months are highly recommended, especially for observing the prolific nudibranch population. With a maximum depth of 10 meters and an average depth of approximately 5 meters, Jogashima is ideally suited for beginner divers, underwater photographers focusing on macro subjects, as well as snorkelers and freedivers. Its popularity suggests that planning for an early arrival during peak seasons might enhance the tranquil enjoyment of this accessible and vibrant dive spot.
