Traveling to the dive destinations off the Izu Peninsula and the Izu Islands usually involves flying into Tokyo. Tokyo's Narita International Airport, otherwise known as New Tokyo International Airport, handles most of the international flights. Tokyo International Airport, also called Haneda Airport, traffics most of the domestic flights. From Tokyo, there are many hop flights to the seemingly countless towns and islands, making up the long chain of possible destinations.
The Izu Peninsula was where scuba diving started in Japan and the area offers a good selection of dive shops and instruction. The challenge for English speaking tourists is to find a shop whose in-house staff and dive instructors speak English. A prominent dive shop ran by English natives is Tokyo based Mar Scuba. The shop specializes in diving the Izu Peninsula and meets at the McDonalds across from the Atami Station daily. Tokyo European Divers is another club/dive shop that caters to English and Swedish speaking scuba divers. Located in Tokyo, the dive shop offers weekend and day trips to great dives along the peninsula. A smaller dive school that also offers trips to the peninsula is Toyko's Triumph Diving Service. This little shop has its own dive boat and caters to families.
In Ito, along the eastern coast of the peninsula not far from Tokyo, there are several dive shops. Bonzo Divers is a shop that regularly dives the eastern dive sites and has an interest and love for the marine life. On the west coast is probably one of the most beautiful dive locations in the bay of Osezaki. The dive shops known as Mic21 are a retail sporting goods shops that cater to scuba divers and are found throughout Tokyo and Japan. The Tokyo shops offers dive courses and excursions, specializing in the Izu Peninsula and are resources for divers wishing to access the remote western coast of the peninsula.
For divers looking to dive the Izu Islands, a good place to fly into is Hachijojima Airport, on the Izu Island of Hachijo. The flight from Tokyo takes only 45 minutes. Hachijo offers great diving and is a getaway from the big city of Tokyo and the busy Izu Peninsula. Another way to get to Hachijo is the ocean liner ran by Toakai Cruise Line that departs nightly from Tokyo Bay and arrives into Hachijo the next morning. Once on the island the resort known as Seapiross on the northeast part of the island is a great resource for scuba divers who want to explore the islands' shore and boat diving locations. The hotel has a dive shop that offers scuba equipment for those who want to shore dive. The shop also has its own dive boat that offers offshore excursions. The resort is a short drive from Hachijojima Airport.
In general, ferries are most easily accessible to the Izu Islands from the peninsula's harbor towns of Takehiba Pier, Atami and Ito.
Today (18 May) I had a very bad experience with your company, agency Sunrise Tours I did the 'morning tour' in Tokyo with Kumie guide, car 11. The first stop was the Tokyo Tower, where there is no time to contemplate the view. Kumie did not use microphone and the group were large. Impossible all to hear it. She promissed free time. But that is not true, the time was exactly to run all over the place, we cannot stop. The guide also did not ask if somebody had questions and let us no time to...