Operates riverboats to Siem Reap (US$20, 7am daily), which squeeze through narrow waterways and pass protected wetlands, taking from five hours in the wet season to nine or more hours at the height of the dry season. Cambodia’s most memorable boat trip, it’s operated on alternate days by Angkor Express and Chann Na.
In the dry season, passengers are driven to a navigable section of the river. The best seats are away from the noisy motor. It may be possible to alight at the Prek Toal Bird Sanctuary and then be picked up there the next day for US$5 extra. Be aware that these boats, while scenic, are not always popular with local communities along the way, as the wake has caused small boats to capsize and fishing nets are regularly snagged. Copious travellers also complain of overcrowding and safety issues – there are rarely enough life jackets to go around.