From Bangkok you follow the Northern Highway 1 going to Saraburi (approx. 100 km). At Saraburi you turn east on Highway 2, towards Nakorn Ratchasima. You will reach Pakchong after about 60 km. Don't take the first exit to Pakchong, take the second one and follow the sign for Khao Yai (road no. 2090). Approx. 2 km turn right at the sign to Eco Valley Lodge. Follow this road (approx. 4 km) and the signs as shown on the map below.