Ruisui Tropic of Cancer Marker

The Ruisui Tropic of Cancer Marker sits at exactly 23 degrees 27 minutes north latitude, pinpointing where the sun reaches its highest point during summer solstice. The monument sits on Wuhe Plateau and serves as a clear, visible reference point for visitors exploring the region.

The original monument was built in 1933 near Ruisui Railway Station and later relocated to Wuhe Plateau in 1981 when railway construction required the move. The relocation made it more accessible to visitors and shaped its current form.

The marker shows how geographic location shapes life in this region and helps visitors understand why eastern Taiwan has distinctive agricultural conditions. It demonstrates how the sun's position influences the climate and farming practices in this area.

Visitors can take the train to Ruisui Station and then board local buses 1137 or 1142 that go directly to the monument. Visit on a clear day with good visibility to fully appreciate the plateau and surrounding landscape.

On June 22 at noon, the monument casts no shadow as the sun sits directly overhead, creating a precise astronomical measurement point. This rare astronomical event happens only at this latitude and only once each year on this specific day.

GPS coordinates: 23.46550,121.35783

Latest update: December 14, 2025 14:44