Nui Sam is the highest mountain in the Mekong. We just had to climb it. So we took 2 Bikes including driver. Visited a strange cave temple first, Buddhas with glasses and statues with a Mother Mary likeness.

Sam

A granite monolith 200 m high.
The way up the stairs was halfway inside Restaurants (had no chairs just hammocks) and the other half inside shrines and temples.
Stayed till sunset.