Tongpan features a typical basalt mesa landform with a shoreline bounded by cliffs made up of well-developed, neatly stacked basalt columns. These spectacular formations have given the island its nickname: "The Yellowstone Park of the Penghu". A paved pathway circling the island gives access to its spectacular scenic attractions.

On a sea-eroded platform on the southwest side of the island is a stepped basin, created by upwelling basalt lava, which is known as the "Lotus Terrace". The shoreline is given additional allure by a beehive-shaped basalt formation called "Cat Rock." Fuhai Temple, located near the dock. It is dedicated primarily to the plague god surnamed Wen, and its ornate decor helps make it the most popular temple in the outlying islands of Penghu. Large coral forests on the nearby seabed make this a fine spot for snorkeling.