Ratanakiri
This is outback Cambodia and the endless red-dirt roads of the region, leading to ethnic minority villages, are an intrepid traveler's delight. For those with an adventurous streak, the province is home to some of Cambodia's best trekking, from spotting gibbons at Veun Sai-Siem Pang Conservation Area, where overnight trips involve sleeping in hammocks and early rises to track buff-cheeked gibbons, to hiking in Virachey National Park, home to elephants, tigers, and sun bears. There's more relaxing options on offer as well. The emerald water of Yeak Lom Crater Lake just outside of Ban Lung town is a tranquil swimming spot, while the waterfalls of Chaa Ong and Ka Tieng are fun diversions that provide more opportunities for getting wet. Ratanakiri is a nature-filled reprieve for travelers suffering from temple-fatigue.