Bon Om Touk

By Khmer Calendar editorial · Last updated 2026-09-26

Bon Om Touk, the Water and Moon Festival, is Cambodia’s three-day boat-racing festival on the full moon of late October or November. Crews from every province race long boats in Phnom Penh as the Tonle Sap reverses course, with lantern floats and fireworks after dark.

Bon Om Touk

Bon Om Touk

Bon Om Touk, the paddling feast most visitors call the river celebration, falls on full-moon days in late October or early November by the moon count, near the East Asian mid-autumn moon. It closes the monsoon months in Cambodia.

Racing craft take the centre. The three-day gathering also notes the Tonle Sap shifting back toward the Mekong as the rains ease, and it pulls crowds in the millions. Expect long boats off Sisowath Quay in Phnom Penh, with night fireworks and riverside concerts around the races. The capital fills with provincial crews and bank-side stalls, so book rooms and transport early.

Overview

Boats open the first day under royal escort, and near six in the evening the lit floats go out while agency teams ask Preah Mae Kongkea, the Ganga mother, for calm and safety. Ministry floats carry bright lamps, and rockets follow to honour what the river gives.

The mother figure comes down from Indian Ganga lore. Cambodia has no Ganga stream, yet people honour her as source of seas, rivers, creeks and lakes — keeper of drinking water, field water, silt and catch. The Tonle Sap holds a sacred place in that thanks, and prayers repay her care with promises to guard nature and with wishes for glad homes and full nets.

Night two turns to the moon with Og Ambok. Just past midnight, lamps are lit for Preah Purthisat and the rabbit-in-the-moon tale, then groups play the laughing game: circle members try to crack each other, the steadiest player names the loser, and the loser eats pounded ambok rice with banana through the rest of the day.

The closing day cuts a ribbon across the course, which shuts both the race ladder and the wider river feast. The turn of the current comes near the November full moon, when the lake stops pressing downstream and runs back up — the natural signal villagers watch for. Bank roads shut during race hours, so come on foot early and allow time for crowds.

Festival of Illuminated Floats (Bondet Bratib)

Bondet Bratib thanks the water mother and seeks pardon for flood harm. Offices launch big lit floats around six, then fireworks take over. Old chronicles link the custom to a Chaktomuk triumph in the 1500s; now the stress falls on thanks for catch, silt and daily use. Match this note with the November month view for the exact three dates this year.

Sources & further reading

Written originally by Khmer Calendar editorial with dates and names verified against the sources above. Confirm civil closures against the official circular.

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