General Information Website to Learn About Izu Islands and Ogasawara Islands

Event information

Event information held in each island

The 31st Izu Oshima Triathlon

June 8 (Sat), 2019
Izu Oshima Special course (main venue: around Motomachi Port)

Izu Oshima Special Course (main venue: around Motomachi Port)
“Tokyo Island Series” is an annual marine sports festival held on Izu Islands. This year, the Izu Oshima Triathlon will be held on June 8 (Sat). This early-summer feature of the islands offers an opportunity for tough triathletes to compete with each other. On Oshima Island with its abundant nature, while enjoying that nature you can also be a spectator of a heated competition!

Date: June 8 (Sat), 2019
Venue: Izu Oshima Special course (main venue: around Motomachi Port)


For details, please visit:


Contact: Tokyo Island Series Event Office
Tel: 042-379-2585 (10:00-18:00 weekdays)



2019.05.09 Update

Pick Up Events

(日本語) 宇喜多秀家鎮魂祭
(日本語) 11月16日(土)・11月17日(日)
(日本語) 八丈島・おじゃれホール、秀家の墓地、住居跡
(日本語) 優婆夷宝明神社例祭
(日本語) 2019年11月9日(土)・10日(日)・13日(水)
(日本語) 八丈島:優婆夷宝明神社
Miyakejima Industry Festival
Nov. 16 (Sat), 2019
Miyakejima:Ako Gymnasium, Folk Museum, Village Office temporary building parking