Blue Hole is a scenic lagoon on the South San Gabriel River. The entrance to Blue Hole Park is located at Second Street and Rock Street, one block west of N. Austin Avenue. This scenic park lined by limestone bluffs is a good wading spot to cool down a little bit in the summer! Blue Hole Park is open from 5 a.m. – 10 p.m. Free public parking is available at the corner of 3rd Street and Rock Street in the parking lot or the parking garage. For more information, please go to parks.georgetown.org/blue-hole.