West of the city are a pair of "mountains", with temples on top of them. It makes an easy ride on a bicycle, but road traffic can be heavy by Cambodian standards. Mt Pros has a dull peak and is approximately 30 m tall. There are a series of temples at the top, with the centrepiece being a five pagoda temple. There are outlying temples, most of which are ruined and falling apart. Sip sugar cane juice from one of the many stalls on the top while watching the monkeys fooling around and stealing bananas from the vendors tables. The Mt Srey has 308 steps running up it, with a ruined temple at the top. There are no monks at this one, but there are several women and old men who collect donations from visitors. Between the two mountains lies one of the country's many killing fields where the Khmer Rouge dumped countless bodies, though in this case it's nothing more than a cement shed and a pile of bones.