IOP is located on the east coast of the Izu peninsula about 90 minutes south of Atami by car, and can also be reached from Ito station in about 30 minutes.
This is perhaps the most beautiful shore diving site in all Japan, both above and below the water. The site facilities are top-notch and the gently rolling hills of the large property are covered with green grass, palm trees and picnic tables.
IOP has a staggering variety of underwater habitats to experience. There is sandy bottom, rocky bottom, kelp, and several spectacular walls packed with soft coral and other creatures. Napoleon Fish, halibut, Parrot Fish, squid and lion fish are just some of the many kinds of life you can share the water with here.
Current is rare and the site offers both shallow and deep diving, making this an excellent experience for both novice and experienced divers.