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Tō Sua is a crater lake in Atua where the water connects to the Pacific Ocean through underground channels. The water reaches approximately 30 meters deep and reveals the volcanic origins of this landscape.

The lake formed through ancient volcanic activity on Upolu Island long ago. This geological process created the deep depression that filled with seawater over time.

The lake serves as a social meeting place where local communities gather for celebrations and daily activities. It holds meaning for Samoans as a connection between their land and the ocean.

Access to the water happens down a long wooden ladder that descends steeply into the crater. Swimming is possible but requires awareness of tide times and safety conditions.

The water level stays constant through natural underground tunnels that link directly to the Pacific Ocean. This hidden water exchange happens continuously without the lake ever overflowing.

Location: Atua

GPS coordinates: -14.04390,-171.56230

Latest update: December 6, 2025 17:45