Beppu Benten Pond is a transparent cobalt blue-color spring that has everflowing pure spring water. The underground water here originally comes from the rain that penetrates through the Akiyoshidai Plateau. You can take out the water from the faucet outside and try the rainbow trout dishes at the restaurant next to the pond. The trouts are raised in the spring water and are freshly caught in the farming site adjacent to the pond.