Mudouyu is situated at the north end of the Penghu islands, only 7km away from its Jibeiyu neighbor on the south; the island is 843m in perimeter and only 0.0244km2 in area, it is a tiny island which is famous for its Mudouyu Lighthouse.
Since the waters between Mudouyu and Jibeiyu is a deep water abrasion platform, submerged reefs are everywhere, even where the water is less than 1m deep, hence the numerous accounts of shipwrecks. It is said that ancestors who lived on Jibei used to pick up floating stuff from the wrecked ships. But for precisely the same reason, animals and plants under the sea can all enjoy sufficient sunlight, and people above water can also see right to the bottom of the ocean, and sail the beautiful underwater world. To ensure the safety of the boats, a lighthouse was built on Mudouyu in 1899. An iron-framed lighthouse of 40m high, painted in black and white stripes, standing as the tallest lighthouse in East Asia.
The lighthouse is equipped with its own generators, with its own lighthouse keeper. The basalt composed Mudouyu still maintains its primitive landscape, with black rocks tightly surrounding the island, causing beautiful waves and giving off a sense of heroism.
There is a shallow sand belt between Mudouyu and Jibeiyu, extending hundreds of meters long and 5m wide, where the water only comes up to the knees; walking on the sand belt is like walking on the sea, very entertaining. If you visit here, you can also see beautiful seashells, but you must be careful. If you take a speedboat from the Jibei harbor, you can see coral reef clearly along the way, with tropical fishes swimming in the water, truly a spectacular and beautiful sight. Another special landscape of Mudouyu is the underwater tunnel. It is at the bottom of a steep cliff, hidden by the sea during flood tide, but when the tide ebbs, people can walk in sideways.
Ask at the North Sea Visitor Center in Chihkan, and select tours or schedule provided by various yacht companies; Jibeiyu is 10km off the north of Chihkan, which only takes 15mins by boat from Chihkan.