North of Shagang in Hushi Township has one of the best waters with shallow coral ground grown in Penghu, with shallow coral ground extending over five kilometers, living an abundant variety of coral reef ecosystem, and the special fishery event here is "luring moray eel". The moray eel has a round and long body, covered thick skin with pigment cells all over; there are brightly-colored, mono-colored, mesh-patterned, and spotted skins, one look, and you can tell it is one of the toughest characters under the sea.

It is one of the ferocious carnivorous fishes among coral fishes, its sharp teeth deadly, once it bites into a prey, it will never let go; often causing injury to fishermen working in intertidal zones. However, local fishermen made use of the nature and ways of the moray eel, and developed a unique capturing method. Moray eels are nocturnal animals, usually hiding their long body inside coral reef caves during the day, revealing only their heads. Moray eels have sharp teeth, but bad eyesight; hence the high success rate for fishermen's luring activities.