Qualla: Sicao Wetlands

Sicao Wetlands: Introduction

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Su-Jean Tsai, CC BY-SA 4.0. A flat-bottomed boat moves through a tunnel of green. On both sides, mangrove roots knit the water's edge into something between land and sea, and the canopy closes overhead so completely that the sky disappears. This is what visitors call the 'green tunnel' — the signature experience of Sicao, a stretch of mangrove waterway through the wetlands of Tainan's Annan District that has become one of the most photographed natural features in southern Taiwan. The Sicao Wetlands are approximately 515 hectares of mangrove swamps, salt marshes, rivers, canals, and drainage ditches set aside by the Tainan City Government in 1994. In 2009, they became part of Taijiang National Park.

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Image: Su-Jean Tsai | CC BY-SA 4.0

Sicao Wetlands: Where the River Meets the Sea, Slowly

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit 雅婕, CC BY-SA 4.0. Sicao sits at the intersection of three water systems: the Luermen River to the southeast, the Yan-Shui River to the north, and the Taiwan Strait just beyond the coastal barrier. This is transition territory — the kind of landscape that is neither fully river nor fully ocean but ...

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Image: 雅婕 | CC BY-SA 4.0

Sicao Wetlands: The Black-Faced Spoonbill's Winter Ground

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit Chiyai1212, CC BY-SA 4.0. Every winter, Sicao becomes one of the most important staging grounds in Asia for the black-faced spoonbill (Platalea minor), a large wading bird characterized by its black face and spatula-shaped bill. The species is vulnerable, with a small total population concentrated in a ha...

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Image: Chiyai1212 | CC BY-SA 4.0

Sicao Wetlands: The Green Tunnel

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit WEN CHIANG CHIOU, CC BY-SA 4.0. The attraction that brings the largest number of general visitors is not the spoonbills but the mangrove canal. The 'green tunnel' — a stretch of waterway completely overhung by mangrove canopy — is reached by small flat-bottomed boats that depart from the Sicao area. Underneath ...

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Image: WEN CHIANG CHIOU | CC BY-SA 4.0

Sicao Wetlands: From Mudflat to National Park

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit APPLERUTH, CC BY-SA 4.0. Sicao's protection began in 1994, when the Tainan City Government set aside the area — a decision that may have seemed modest at the time but proved prescient as Taiwan's western coast came under increasing development pressure. The 2009 expansion into Taijiang National Park gave...

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Image: APPLERUTH | CC BY-SA 4.0

Sicao Wetlands: Reading the Landscape from Above

Sat, 13 Jun 2026 00:00:00 GMT

Photo credit WEN CHIANG CHIOU, CC BY-SA 4.0. From the air, Sicao is unmistakable. At 23.030°N, 120.138°E, the wetlands appear as a green intrusion into the tan and gray of the reclaimed coastal plain west of Tainan — a dense, dark-green patch threaded by silver water channels, set apart from the geometric fish ponds and agr...

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Image: WEN CHIANG CHIOU | CC BY-SA 4.0