When you mention Jibei Island, many people will think of the popular idol TV drama At the Dolphin Bay. But Jibei is also famous for the Jibei Sand Tail on the southwest coast. Sand tails, also called "sand mouths,” are a marine deposition landform. Pushed by ocean tides and currents, coral debris and shell sand accumulate, forming sand spits, narrow points of land extending into the ocean. On the southwest beach, Jibei Sand Tail extends from Xikan Mountain to the southeast, reaching into the sea where the beach ends. The formation is about 800 meters long and 200 meters wide. Because coastal currents change according to seasonal wind directions, the shape and size of the sand spit also changes, a natural phenomenon that suggests a wagging tail. You can snorkel or swim here and enjoy the sunrise or sunset.

Xikan Mountain near Jibei Sand Tail was once an independent basalt reef. However, long-term accumulations of coral debris have turned it into a land-tied island connecting to Jibei. It’s the highest point on Jibei, looking out over the islands of Mudouyu, Gupoyu, and Tiezheyu. Stone weirs in the surrounding waters and intertidal zones are fully visible at low tide.

Jibei Island is also an ideal place for migratory birds flying south every autumn and returning north in the spring to stop, feed, and replenish their energy before continuing on. A survey showed that 3,000 Chinese Sparrowhawks flew over Jibei every day in the spring of 2013. Other rare bird species are often spotted on the island during the migratory season as well.