This is a neat, organised restcamp with a well-tended office, good sites, and six excellent four-bed bungalows. The camp's office includes a small shop with a surprisingly wide range of foodstuffs, cool drinks (including some beer and wine) and postcards.
Popa's bungalows are well built of local wild teak and come with their own bedding and gas lamps, but use communal kitchens and ablutions. If you are camping then walk around before you pitch camp: there are secluded sites as well as the more obvious ones. Try taking the main track down to the river, and turning right along the bank. Beware of the mosquitoes, which are numerous.