Akasaki Promenade

In short

Akasaki Promenade is a wooden boardwalk approximately 500 meters long, built along the Akasaki Coast in the northern part of Kozushima Island. Constructed over rocky terrain, this path features suspension bridges and observation platforms, resembling a wooden obstacle course. It is known for snorkeling in the cove and water activities from the diving platforms.

• ​Cove Waters​​: A swimming area utilizing a natural cove, where many fish such as spangled emperors can be seen.
• ​Two Diving Platforms​​: Featuring platforms of different heights, where many children and tourists enjoy jumping in during the summer.
• ​Observation Platforms and Stargazing​​: From the observation platforms, you can look out toward Niijima Island, Shikinejima Island, and Mt. Fuji; at night, it is also famous as a spot for stargazing.

History and Highlights

Akasaki Promenade is a wooden boardwalk approximately 500 meters in total length, built on the Akasaki Coast in the northern part of Kozushima Island. Erected over a rocky area, it features suspension bridges, observation platforms, and diving platforms. The walkway is like a wooden obstacle course. Combined with the distinctive rocky scenery, it sparks the spirit of adventure in adults as well as children.

The sea enclosed by the walkway serves as a swimming beach that takes advantage of the natural cove. In this rocky area, corals also grow naturally. Many fish such as spangled emperors inhabit the waters, making it a popular spot for snorkeling and scuba diving.

Viewing and Experience Tips

• ​Snorkeling in the Cove​​: In the cove, you may encounter small fish. Because the water in this rocky area is too deep to stand in, those with small children should be extremely careful. The tourist association recommends it for elementary school students and older.
• ​Two Diving Platforms​​: There are two diving platforms of different heights along the promenade. In the summer, many children and tourists enjoy jumping in. Make sure there is no one below before jumping. At low tide, it is dangerous as there is a risk of hitting the seabed.
• ​Views from the Observation Platforms​​: From the observation platforms, you can view the northern islands of the Izu archipelago, Mt. Fuji, the Southern Alps, and more. Niijima Island, Shikinejima Island, and the Izu Peninsula are also visible. At night, it is also famous as a stargazing spot to gaze up at a sky full of stars.

Visiting Tips

From Kozushima Port, it is a 15-minute ride on the village bus bound for the Onsen Recreation Center and Akasaki Promenade. Get off at the last stop, and it is about a 1-minute walk. A 5-minute ride on the bus bound for the same direction brings you to the Kozushima Onsen Recreation Center. For water recreation, visitors are called upon not to swim alone, never to take their eyes off children, and to wear life jackets. Swimming is permitted until around 5:00 PM. For an overview of the island, see the Kozushima Island spot; for hiking, see the Mt. Tenjo spot.