If thrills are what you're after, head to Raging Waters, located 0.9 mi (1.5 km) from central San Dimas. If you have fun at Raging Waters, you'll love Raymond M. Alf Museum of Paleontology, located nearby.
San Dimas Canyon Park is worth a visit, located 1.8 mi (2.8 km) from central San Dimas.