The underwater world that can be seen only on Kohama Island!
Swim with colorful tropical fish and coral reefs

In the ocean around Kohama Island, you can enjoy diving in "Ishinishi Jagako," the largest coral reef area in Japan.
This vast coral reef zone stretches approximately 20 km east to west and 15 km north to south, and is covered with colorful blue, yellow, and red corals.

The coral reefs are home to a variety of creatures, including the fish familiar from "Finding Nemo," such as the "devilfish" and "clownfish. If you are lucky, you may even meet a sea turtle... ♪
Through the experience diving, you can feel the charm of the sea and the breath of life, and spend a luxurious time with tropical fish!
Beginners and those who are not good swimmers can also enjoy!

When you hear the word "diving", you may think it sounds difficult for first-timers... But, in fact, the participantsApprox. 80% or moreis your first time, so don't worry!
Before the tour, a detailed lecture is given on how to put on the wetsuit and practice breathing and ear removal.

Experience diving in Kohama Island is an attractive activity that even beginners can enjoy with ease!
Experience diving and feel weightless!

Diving offers a fluffy sensation similar to weightless spaceSpecial ExperiencesOh my god!!!
It is very attractive to see up close the tropical fish that inhabit along with the beautiful coral reefs while floating freely.
A new adventure in the sea awaits you, along with a feeling of weightlessness.