This is a recreation facility planned on a high ground in Nanjo City in the southern part of Okinawa Prefecture. The owner was fascinated by the view of the Pacific Ocean over the land. Therefore, I thought that I could propose a resort with two different properties. The first floor is a cave-like closed environment where you can see an image of an underground lake. The second floor is a space connected to the magnificent natural environment. The space where the green, sky, and Pacific Ocean become one and begins to connect with consciousness is the best recreation facility.