Phnom Chhnork Temple
An 11th-century temple is hidden away in one of the many limestone caves just 8km from Kampot. Due to the protection of the cave the temple is in good condition, with stalactite jaws slowly closing down on it. The caves are free, but there will likely be local teenage guides to show you around for tips (so carry small change). It's nice to add to the local economy and also adds fun to the experience. The caves are just past Kbal Romeas, a short 1km ride off the road to Kep through the beautiful countryside. You can either hire a moto in Kampot for $5, or hire a moto driver for around the same. Some guesthouses also offer trips here, so ask around if you don't want to use a moto.