Odawara and Atami are serviced by the Tokaido Shinkansen. From Atami to Ito, the Ito Line, and other towns on the east side of Izu are serviced by the Izukyu Railway between Ito and Shimoda. The interior of Izu has the far less convenient Sunzu line from Mishima and west coast has no train service. Tokyo to the southern tip of Izu can cost up to ¥5500.
The east coast has good highway service from Odawara to Shimoda. The interior has several roads, including the Izu Skyline Road (toll) from Hakone to approximately the middle of Izu. This popular road runs along the mountain crest and has very nice views on clear days.
Roads on the west side are narrower and have enough turns to slow progress significantly. Although the driving speed is average for Japan (60km/h) don't plan on making more than 20km/h straight-line progress.
The section between Atami and Odawara is usually gridlocked on Sunday evenings, particularly in the summer. Turning inland at Atami and going through Hakone is often a faster return to Tokyo despite the extra distance.
Izu Peninsula is recognized in the scuba diving community as the most popular destination for mainland Japan diving. The East Coast of Atami is most popular with dive operators for its accessibility and infrastructure, while the West Coast's sites are largely unspoiled, safeguarded from weekend crowds by its remote destination and lack of train stations.
Mar Scuba Tokyo; Phone: +81 (0)90 3851 3901; Email: firstname.lastname@example.org; Website: http://www.marscuba.com Mar Scuba Tokyo is the longest-running English dive operator in the Tokyo area and offers fun dives and courses at various locations throughout the Izu Peninsula.
Japan Underwater Explorers; Email: email@example.com; Website: http://www.jue.jp J.U.E. is a recreational and technical dive club/service offering multi-lingual training and fun dive adventures. Japan's premier GUE training service.
Scuba Diving Japan; +81 (0)90 8404 1968; Email: firstname.lastname@example.org; [Website: http://www.scubajapan.comhttp://www.scubajapan.com]   ; Scuba Diving Japan is run by John who has been instructing for over 10 years, we provide transport from Ichikawa(within the tokyo area) to the dive sites at Izu, we also cater for fun diving and diving courses
Hotel-Fuji Fugaku Gunjo, 2461-1, Yagisawa, Izu-shi, Shizuoka, ☎ 0558-99-1111 (International : +81-558-99-1111) (fax: 0558-99-1112 (International : +81-558-99-1112)), . checkin: 3:00p.m.; checkout: 12:00p.m.(noon). Fugaku Gunjo is a place where you can enjoy watching the sea, dine on great food and enjoy a nice hot spring. Each room has a private open-air bath so you can enjoy the view of the sea while taking a bath.63,000yen - 73,000yen. edit