These traps utilize the 'stone weir' technique, a passive fishing method where no nets or active bait are required.
The walls are constructed using locally sourced, porous Penghu basalt, which provides high durability against wave erosion.
The horseshoe design is specifically angled to coincide with the movement of the regional tidal currents.
Unlike modern industrial fishing, this method does not contribute to overfishing as it only captures fish present during the specific tide cycles.
The Chixi Stone Fish Traps are a traditional, horseshoe-shaped tidal fishing structure constructed from volcanic basalt rocks on the coast of Xiyu Township. These traps function by utilizing the natural tidal range, where fish swim into the enclosure at high tide and become trapped as the water recedes. The structure is one of the most well-preserved examples of 'stone weir' fishing, an ancient maritime technology once prevalent in the Penghu archipelago. Built without cement or mortar, the walls rely on precision stacking to withstand strong seasonal monsoon currents. The site provides a clear view of the complex engineering used by early local communities to ensure food security through sustainable, passive fishing methods. Visitors can walk out onto the structure during low tide, allowing for close inspection of the basalt construction. The surrounding intertidal zone is rich in biodiversity, often revealing small crabs and marine life in the tide pools.
From the elevated coastal path looking down at the horseshoe shape during low tide, or from the center of the trap looking back toward the shoreline.
Wear water-resistant footwear with good grip, as the basalt stones can be slippery and sharp when covered in algae.
Verify the local tide tables before your visit, as the structure is only accessible and fully visible during low tide.
Bring sun protection, as the coastal location lacks natural shade and is fully exposed to the sun.
Attempting to walk out to the structure while the tide is incoming or high, as water levels rise rapidly and can trap visitors on the outer walls.
Do not remove stones or disturb the marine life found within the traps; practice 'leave no trace' principles.
