From Interstate 35 Frontage Road and Aquarena Springs Dr, San Marcos, Texas, drive southwest on IH 35. Take the ramp to your left onto I-35 S. Take exit 202 toward Wonder World Dr/Farm to Market Road 3407. Merge onto IH 35. Make a sharp left turn to stay on IH 35. Make a right turn onto San Marcos Parkway. Make the second left turn onto Leah Ave. Wellington Apartments will be on the left.