Right next to the Sand Ski Hill, down a steep set of stairs, you will come to another one of Shimoda’s natural wonders. It is a massive cave naturally carved out by blowing wind, sand, and water. It is open on the top and has a passage out to the sea. You can also walk around the top of the cave for some mesmerizing ocean views.
Sand Ski Hill and Ryugukutsu is a 15 to 20 minute walk from Retreat wabi-sabi.