From Austin or Dallas: Take Interstate 35 south to Exit 202 (Wonder World Drive/Ranch Road 12). Head west on Wonder World Drive (also named Ranch Road 12) for 4 miles. Entrance to San Marcos Academy will be on your left.

From San Antonio: Take Interstate 35 north to Exit 202 (Wonder World Drive/Ranch Road 12). Head west on Wonder World Drive (also named Ranch Road 12) for 4 miles. Entrance to San Marcos Academy will be on your left.