To the north you do not take the direct road to Ban Laem (37 km), but the well developed, less trafficked H3176, the extension of Ratchdamnoen Road., 10 km to the north. Here you turn left passing shrimp farms for another 3.5 km in the direction of Wat Khao. After 3 km you turn left, shortly after to the right and another 10 km straight on passing through a beautiful mangrove landscape with coconut groves and charcoal burnings, until you reach a concrete road to Wat Khao Samro Rabung (located on a hill in the northeast). Continue on this road for 5 km, then turn left crossing train tracks and arriving on H4. Stay on H4 for 4.5 km, then turn in Khao Yoi on small countryside roads to the north passing through idyllic villages until cave temple Khao Yoi.
700 m east of the cave a dirt track that is only accessible during dry weather conditions leads from the asphalt road along the canal within eye shot of H4 for about 13 kilometers to the north and then back to H4. For the following 9 kilometers there is no alternative route. Only in Ban Puey, you can access again small concrete or dirt roads that are only used by agricultural vehicles and you will pass through small villages with traditional houses. Behind Ban Khim (a Chinese temple is situated in the center of the village), after 5.3 kilometers and beyond a large Thai temple with a white chedi, you reach H35 in the direction of Bangkok. After 500 meters you reach H4 on your left. Straight on, beyond H35 and the rice fields Pak Tho, a side road starts to Ratchaburi.
