River Cruises in Cambodia

Cambodia river cruises sail the Mekong (and often the Tonlé Sap) between Phnom Penh and Siem Reap, typically aboard small ships carrying 20–60 passengers, given the river's shallow depth in places. Most itineraries run 3–7 nights and combine river sailing with stops at floating villages, temple sites, and rural markets. As of 2026, sailings depend heavily on water levels, running smoothly in the wet season (roughly June–November) and sometimes requiring bus transfers during the dry season's low-water months.

A Vietnam–Cambodia river cruise typically sails the Mekong from Ho Chi Minh City's Mekong Delta up through the Cambodian border to Phnom Penh and often onward to Siem Reap, a route of roughly 300 miles (483 km). Most itineraries run 7–8 nights and include a stop at Angkor Ban or Wat Hanchey along the way. Border crossing procedures are typically handled on board by the ship's staff rather than requiring passengers to disembark.

Sailing from Vietnam into Cambodia, follow the Mekong upstream, passing through the Delta's canal network before entering Cambodian waters near Kaam Samnor. This direction typically takes 7–8 days to reach Siem Reap, with river conditions generally favorable outside the driest months (roughly March–May). Onboard lectures on Mekong ecology and Khmer history are common during the longer sailing days.

Luxury Mekong sailings through Cambodia, such as those operated by Aqua Expeditions, typically feature suites of 300+ sq ft (28+ sq m), private balconies, and included excursions to sites like Angkor Wat as part of the fare. These ships generally carry fewer than 40 passengers, allowing closer approaches to floating villages that larger vessels can't reach. As of 2026, per-person fares for luxury Mekong sailings typically start above $3,500 for a week-long itinerary.

The best fit depends on priorities: smaller boutique ships get closer to floating villages and rural stops, while larger vessels offer more onboard amenities but require more tendering. Itineraries that include a Siem Reap extension add direct access to Angkor Wat, which isn't reachable by river alone since the port depends on Tonlé Sap Lake water levels. Comparing dry-season contingency plans (bus transfers versus guaranteed water routes) is worth doing before booking.

Cambodia river cruises are typically booked 6–12 months ahead for peak wet-season sailings (roughly June–November), when water levels allow the fullest Phnom Penh-to-Siem Reap routing. Fares usually include Cambodian visa arrangements or e-visa guidance, since a visa is required for US travelers. Confirming the season and water-level contingency plan with the operator before booking helps avoid mid-cruise itinerary surprises.

These extended itineraries combine a Mekong sailing through Vietnam and Cambodia with a separate leg into Thailand, usually connected by an overland or flight segment rather than continuous river travel, since the Mekong doesn't provide a direct water route between Cambodia and Thailand. Total trip length typically runs 12–16 days, including the connecting segment. It's a land-and-river combination rather than a single continuous cruise.

This extended itinerary links the upper Mekong in Laos with Cambodia and Vietnam's Mekong Delta, typically combining two or three separate ship segments connected by short flights or coach transfers, since no single vessel currently sails the entire stretch. The total trip length is 14–21 days when combined this way. It's best understood as a multi-leg journey rather than one continuous river cruise.

Yes — several operators run boutique Mekong vessels carrying under 30 passengers, which can navigate shallower stretches of the river and dock closer to rural villages than larger ships. These smaller ships typically emphasize included excursions and communal dining over cabin size, with rooms often in the 150–200 sq ft (14–19 sq m) range. Wet-season sailings (June–November) offer the most consistent access to the full route on these vessels.

As of 2026, US citizens need a visa to enter Cambodia, available as an e-visa applied for online in advance or a visa on arrival at major entry points, typically costing around $30–$36. Most river cruise operators provide guidance on the e-visa process as part of pre-departure documentation. Passports should have at least six months' validity remaining from the travel date.

Cambodia operates on a dual-currency system, with the US dollar used for most transactions, including cruise-related purchases, while the Cambodian riel is used for small change and local markets. Onboard charges are typically billed in US dollars regardless of the ship's registry. Small bills are useful for tipping guides and vendors at village stops.

The wet season, roughly June through November, brings the highest Mekong water levels and the most reliable full-route sailing between Phnom Penh and Siem Reap, with daytime temperatures around 85–95°F (29–35°C). The dry season (December–May) sees lower water levels, which can require bus transfers on the upper stretches near Siem Reap, particularly from March through May. Most operators publish water-level contingency plans ahead of each sailing season.

Yes — itineraries ending or beginning in Siem Reap typically include a full-day Angkor Wat excursion, though it's worth confirming whether the temple is reached by cruise ship directly or via a coach transfer, since Tonlé Sap Lake's water levels affect how close vessels can dock to Siem Reap during the dry season. Many travelers add a two- to three-night pre- or post-cruise stay in Siem Reap for a more relaxed temple visit. Entry to the Angkor Archaeological Park requires a separate pass, usually arranged by the cruise operator.

Most Cambodia-focused Mekong itineraries run 4–8 nights, while combined Vietnam–Cambodia sailings typically extend to 7–10 nights to cover the full Delta-to-Siem Reap route. Shorter 3-night sailings focused solely on the Phnom Penh area are available for travelers with limited time. Adding a Siem Reap extension for Angkor Wat typically adds 2–3 days to the total trip.

The CDC recommends being up to date on routine vaccinations before travel to Cambodia, and as of 2026, typhoid and hepatitis A vaccines are commonly recommended for travel on the Mekong River; a travel medicine provider can confirm current guidance. Malaria risk exists in some rural areas, so discussing antimalarial options is worthwhile if the itinerary includes overnight stops outside Phnom Penh or Siem Reap. Bottled water is standard practice throughout the cruise, and most ships provide it as part of the fare.