I landed ?️ in the unexplored area of Minamiboso [Okinoshima]
... Even though it is called landfall, it is currently connected to the land by a sandbar, so it is strictly classified as [Riku Shigejima].
The sandbar part is a beach, so it is crowded with people in the summer, but the island is ? rather less popular.
In such an area on the island, there is a place where you can enjoy a [secret cave] and a raised [ancient strata] as a ? set.