Diving in Izu Peninsula

Japan

64 dive sites

155 dive centres

Izu Peninsula. Japan’s most accessible diving from Tokyo, and we love it for its wild diversity. Think dramatic volcanic seascapes, an astonishing variety of macro critters, and, if you hit it right, some serious pelagic action. The local dive scene here is robust, with over 100 dive centres spread across the peninsula, so finding a guide is never an issue. What we genuinely appreciate about Izu is its commitment to the small stuff. The muck diving rivals Southeast Asia for sheer strangeness, with bizarre bellows fish and bristlemouths hiding in the sandy bottoms. Our favourite sites often involve poking around rocky overhangs, spotting frogfish perfectly camouflaged against the volcanic rock. We’ve spent whole dives mesmerized by the frantic displays of a short-head sabretooth blenny. But don’t pigeonhole Izu as just a macro spot. Mikomoto Island, a bit of a boat ride from Shimoda, offers a completely different vibe. Strong currents here sweep in hammerhead aggregations seasonally, usually from late summer into autumn. It’s an exhilarating drift, not for the faint of heart, but the reward of seeing dozens of sharks materialise from the blue is something else. You can practically feel the current pushing you along, the water roaring in your ears. For a different thrill, some of the deeper sites can reveal rarer finds like halosaurs or snipe eels, if you have the patience and the gas. Overall, Izu is a fantastic option for anyone looking for something beyond the typical coral reef.