Nii-jima is a small island located in the Izu Islands of Japan, part of Tokyo Metropolis. It is known for its beautiful beaches, clear waters, and scenic landscapes, making it a popular destination for tourists seeking outdoor activities like swimming, snorkeling, and hiking. The island has a rich history, including its use as a place of exile during the Edo period. Today, Nii-jima is also famous for its hot springs and unique pottery, attracting visitors interested in both relaxation and cultural experiences.