Thompson's Island

B+

Good

Natural island in the San Marcos River popular for swimming and as a rest spot during tube floats. Accessible only by water.

Activities

swimmingtubing

tubing rest stopswimmingnature

Naturenatural area

No parking - access by floating from upstream parks.

San Marcos Gauge

Closest station, 0.1 mi away

B+Good

Flow

94.9 cfs

Height

3.89 ft

Updated

Aug 12, 8:45 AM

Coordinates: 29.8722, -97.9400