Found in Taijiang National Park, there are two boat rides to observe the marine life and migrant birds of a mangrove swamp reserve. The rare black-faced spoonbill can be seen here. The shorter route takes about 30 minutes, while the longer one is about 70 minutes. Queues are roughly the same time as the boat rides, and weekday boat schedules only run a few times per day.
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安平樹屋 (Ānpíng shù wū)
Anping Tree House was built as the warehouse of Tait & Co. During the Japanese occupation it was the office and warehouse of the Japan Salt Company. After World War II, the salt industry in Anping declined, and this area was abandoned. Over time, the aerial roots and branches of banyan trees wrapped around the building. Combined with the soil, red brick and partial concrete wall, this creates an unusual sight and is a popular tourist attraction. There is also a sky bridge behind with a view of Yanshui estuary.
Fort Zeelandia / 安平古堡 (Ānpíng Gǔbǎo)
In the early 17th century, European seafarers came to Asia to trade and develop colonial outposts. In 1624, the Dutch occupied today's Anping and took ten years to build a fort named "Fort Zeelandia." After 1662, because Koxinga and his son lived here, it was named "King Castle," "Anping Castle" as well as "Taiwan Castle." The Japanese rebuilt it and named it "Anping Old Fort." Today, the only Dutch remains are the ruins of a semicircular bulwark and a section of the outer fort's brick wall; the root of an old banyan tree on the wall remains a witness to the fort's long history. Its commanding views of the ocean make it a popular place to watch the sunset. Nevertheless, the fort itself is not that impressive, and neither is the view from the tower during the day. Also, there is not much space in the tower, so it is questionable that many people will be able to enjoy the sunset. Hence, you could skip it for Anping Tree House instead.
億載金城 (Yì Zài Jīnchéng)
A 19th-century coastal fortress, it was built during the Qing dynasty and armed with cannons to defend against the threat of Japanese invasion. Bricks from the remains of Fort Zeelandia were used during the fort's construction. The squarish fort feels like a very big park inside of its thick walls and gate tunnel and a visit will take not much more than 5 minutes. Paddle boats are available for rent in the moat surrounding the fort. There are sometimes musical events and performances in the evening.
Fort Provintia / 赤崁樓 / Chìkàn Lóu
Chihkan Tower is the landmark of Tainan and its most famous historic site. In 1653 the Dutch built Fort Providenti in the area, and the Chinese named it Tower of Savages or Tower of Red-haired Barbarians. Even though Chihkan Tower has survived different historical periods, with part of it turned into a temple to the sea god, it retains its rich and graceful architectural aspects. Crammed with various kinds of steles, statues and ponds with colorful fish and nine stone tortoises carrying royal stele carved in Chinese and Manchurian, the courtyard looks like an outdoor museum. Chihkan Tower is particularly attractive at night.
祀典武廟
A large temple complex with a mix of Taoism and Buddhism. Among the numerous statues in the temple are the 18 arhats (look for the one with the long eyebrows). There's a steady flow of worshippers moving through the temple, some lighting incense or casting divination blocks. Behind it is a temple to the sea goddess Matsu.
國立臺灣文學館
Located in a restored colonial-era Japanese building, even with the limited English on display this museum is fascinating. The coffee shop is good too.