Taiwan Food Atlas

Sanxiantai

An andesite reef island connected to the shore by an eight-arch pedestrian bridge — a showcase of coastal erosion landforms on the East Coast
📍 Taitung · Chenggong Township · Sanxian Village🏞️ Nature🔖 Eight-arch pedestrian bridge · Reef landforms · Lighthouse

Sanxiantai consists of a headland and three reef islands connected to the mainland by an eight-arch pedestrian bridge, and is one of the most iconic natural landscapes on the East Coast. The reefs are composed of andesite, with rich erosional landforms including sea caves, sea channels, and honeycomb weathering. The island has a lighthouse, and the surrounding waters are a coral reef ecosystem.

Highlights of Sanxiantai

Sanxiantai is located in Sanxian Village, Chenggong Township, and is one of the most famous coastal landform attractions on Taiwan's East Coast. The eight-arch pedestrian bridge spans the turquoise sea in a graceful white arc, and has become Sanxiantai's most visually recognizable feature. The reef island is composed of andesite, which has been sculpted over time by the waves of the Pacific Ocean into an array of erosional landforms, including sea caves, sea channels, sea stacks, and honeycomb-textured rock faces.

After crossing the bridge onto the island, you can walk the island trail around the reef, a journey of about 1 to 1.5 hours. Along the way, observe the geological features and coastal vegetation. The northern tip of the island has a lighthouse with sweeping views, offering a panoramic view of the surrounding waters. The surrounding waters have rich coral reef ecosystems; summer is suitable for snorkeling, though current conditions and relevant safety regulations should be noted.

Tips for Getting the Most Out of Your Visit

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Walk across the eight-arch pedestrian bridgeThe bridge is about 200 meters long, with eight graceful arches. Walking across it, you feel the sea breeze and hear the waves — a must-do experience when visiting Sanxiantai.
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Island trail around the reef landformsThe island trail loops around the reef for about 1 to 1.5 hours. Along the way, observe geological features such as sea caves and honeycomb rocks. Non-slip shoes suitable for walking are required.
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Lighthouse panoramic viewThe lighthouse at the northern tip of the island has the widest view, overlooking the full expanse of the Sanxiantai reef and surrounding waters — an ideal high vantage point for photography and sightseeing.
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Summer snorkelingThe waters around Sanxiantai have intact coral reefs. Sea conditions are relatively calm in summer — ask local operators about snorkeling experiences. Always understand the day's current and prohibited zones before entering the water.

Practical Information

Getting There & Time

  • By car: Head north on the Chenggong section of Provincial Highway 11, follow the Sanxiantai signs, and turn in. The parking lot is next to the visitor center, with ample space.
  • Public transport: Take an East Coast highway bus from Taitung City or Hualien (such as the Hualien–Taitung East Coast Line), and alight at the Sanxiantai stop. Buses are infrequent — check the timetable in advance.
  • Recommended visit duration: Bridge crossing plus island trail, approximately 2 to 2.5 hours.

Nearby Connections

  • Chenggong town center is about 5 to 10 minutes from Sanxiantai. Chenggong Fishing Harbor can be observed for fishing operations, and the two can be combined into a Chenggong Township half-day itinerary.
  • Heading south on Highway 11 leads to Donghe Old Bridge or Shiyusan (Stone Umbrella) and other East Coast geological landscapes, forming an East Coast Highway theme route.

Source: Public documents on Sanxiantai and East Coast geological data. Photos to be replaced with Dio's own shots.

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