Tonle Sap

I think it was the passionfruit mint lime caprivoska that made the boat blurry. It is on Tonle Sap

The amazing lake and river system of the Tonle Sap is quite unique. This vast lake; the largest in SE Asia, fills with the waters of the Mekong each year, bringing vast numbers of fish and irrigation during the dry season.
The Mekong starts its journey in the Himalayas, flowing through China, Laos and Cambodia before discharging into the sea at its delta in South Vietnam. The Mekong Delta cannot absorb all the river water; so in May, the river reverses its normal seaward flow and begins for flow back up the Tonle Sap River.
The 160km long lake fills with water and, expands to 250kms long by up to 100kms wide over a period of 3 months. The lake rises and progressively floods the surrounding forests and rice fields.