There are many reasons to go diving with sharks and other macro marine life near Tokyo, but one of the best reasons to dive in Osezaki is its proximity to Mt. Fuji. Since you can see Mt. Fuji clearly from Osezaki, it is considered one of the most scenic spots for diving in Japan. Being near Mt. Fuji is also why Osezaki is considered a sacred place for diving within the Kanto area.
Osezaki is a beach diving spot which means that you have a variety of underwater terrains. This allows you to see both shallow water and deep-sea water marine life in one convenient location. The calm waters, a wide variety of underwater environments, and an abundance of sea creatures all add to the charm of Osezaki diving. Plus, this unique Izu Peninsula destination is perfect for diving during all four seasons of the year. The biggest attraction for this diving point is that you can see large deep seawater creatures and other macro marine life while still being close to shore.
The beach diving area of Osezaki has many dive shops along the 800-meter stretch, so you'll have plenty of company during your dives. It's a popular destination with both travelers and locals simply because the spot offers up such a diverse diving experience. Here you can enjoy the serenity in the calm inland bay or go all-in by diving in the fast current outside the bay in the open ocean. You can make your experience as peaceful or extreme as you want, making it the ideal excursion for all diving levels.
You'll be diving near the edge of 2500 meter deep Suruga Bay, which is why it's very likely that you'll be lucky enough to see many different types of deep-sea creatures depending on the wind and current situation. The inland bay is basically a sandy, muddy seafloor, making it an ideal environment for the nudibranch to flourish. The tip of the cape is open only on weekends and public holidays but only if you are certified to dive deep. Here you can see many different deepwater creatures, some endemic to Japan. Even the open sea Mola mola sometimes appears during the winter months to its cleaning station.