The Genkai Sea is a body of water located between the northern coast of Kyushu and the southern coast of Honshu in Japan. It is part of the larger Seto Inland Sea and is known for its rich marine biodiversity and scenic coastal landscapes. The sea is also significant for local fishing industries and tourism. The Genkai Sea is home to several islands, including Nakanoshima and Shikanoshima, which offer recreational activities such as fishing, swimming, and hiking. The area is also culturally important, with historical sites and traditional fishing villages dotting the coastline, attracting visitors interested in both nature and heritage.