From Bangkok to Villa Reina Resort, Khao Yai, you only need 2 hours for a 180-kilometers drive. From Bangkok, take Phahol Yothin Road to Saraburi and make a right turn on to Mitra Phab Road. Drive along the way, passing Muak Lek, Klang Dong, to Km. 58, then keep left and take a flyover to Thanarat Road (local road 2090) for about 2 kilometers (notice 7-11 convenience store on the left hand side). Then, turn left on to Kanong Phra Banna Road for about 1.8 kilometers and make a right turn at the intersection for another 200 meters, Villa Reina Resort, Khao Yai is on the left hand side.