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From the San Antonio International Airport:

Start out going east on terminal acc towards parking ( 0.1 miles). Turn slight left onto parking. Road becomes airport blvd. Turn slight right onto NE Loop 410 (0.1 miles). Take the I-410 west ramp. Merge onto I-410 w/I-410 loop w. (7.7 miles). Take exit number 13a, towards Leon Valley(TX-16 N)/San Antonio (0.1 miles). Turn right onto Bandera Rd/TX-16 (9.1 miles). Take Bandera Rd. (Hwy16) north from 410, to thesignal light past Helotes, TX (just past Floore's Country Store). Turn right onto Scenic Loop Dr (Located Approximately 3.5 miles from Bandera Rd.) Go through the community of Grey Forest, past Grey Moss Inn restaurant (1/2 Mile past Grey Moss Inn.). You will see a rock fence (#20058) on the entrance. There are railroad cars across the street. Total distance: 21.9 miles

From Houston, TX:

Take IH 10 West to San Antonio, TX. Take IH 1604 West to Babcock Rd. Exit, wind around approximately 5 miles, until you dead end on Scenic Loop Rd. Turn left on Scenic Loop Rd. and proceed 1 mile to the premises, on the left.