Kampong Trach is the district that borders Vietnam. The road trip from Kampot to the main town passes though some delineated rural areas. There's a new side road to Kampong Trach town that skirts the base of Phnom Voar,( where the victims of the 1994 Khmer Rouge kidnappings were held.) These mountain areas of Kampong Trach were one of the last Khmer Rouge holdouts. Kampong Trach town is small and relatively uninteresting. The area's main magnet is a series of limestone grottoes and tubes that have beencarved.into a near mountain. The roof of a large delve in the center of a mountain has collapsed, making a small, enclosed jungle.
Pagodas and sanctuaries have been constructed amongst the grottoes , furnishing for some excellent shot possibilities. Bring a flashlight and wear good walking shoes. From Kampot, take the Kep road, bear left at the White Horse Monument and follow to Kampong Trach. After a many kilometers the road changes to poorly broken pavement. The side road mentioned above requires a left turn onto a canted dirt road about 7 km past the White Horse Monument. It isn't a straightforward route and it may be better if you go with a companion. Set away the better part of a day for the trip to the grottoes and back.