Green Island is a small volcanic island located off the coast of Taiwan. It covers an area of about 18 square kilometers and is known for its stunning natural beauty, including lush greenery, rocky cliffs, and clear blue waters. The island is a popular destination for tourists seeking outdoor activities such as snorkeling, diving, and hiking. The island has a rich history, having served as a political prison during the Martial Law period in Taiwan. Today, visitors can explore historical sites, including the Green Island Prison, and learn about the island's past. Its unique ecosystem also supports diverse wildlife, making it a great spot for nature enthusiasts.