Beimen Wetlands Introduction
Beimen District has an ecological environment characterized by lagoon ecology, rich in fish, shrimp, shellfish, and mangrove landscapes, commonly attracting many herons, waterfowl, mudskippers, and various crabs, making it appealing for lagoon ecotourism. The most notable feature is the black-bellied tern, which visits from October to April each year; during dusk, they gather in flocks to fly and form various formations according to the wind direction, creating a spectacular sight. Previously, the sea holly mangroves thrived in the marshlands of the Beimen Lagoon area, west of Beimen Oyster Harbor, but were later developed into reclaimed land or fish farms, with many oyster beds visible in the lagoon, forming another unique coastal landscape. Under the Tainan government's vigorous mangrove restoration policy, there is a 6-hectare area of sea holly at the outlet of the Toupeng Drain in the southern part of the lagoon; at the outlet of the Jishui River, sea holly has also been repopulated due to sediment accumulation, and water caltrop is introduced. Mangrove protection areas have been established at these two sites, astonishing visitors with their vibrant ecological scenery.