Tonle Sap in Cambodia is a lake that consist local residence. The houses are built on the lake and have no electricity or running water. The residents use a battery instead of electrical outlets and goes to the bathroom in near by bushes or the lake. This isn't uncommon though, as a lot of locals in Angkor on land live in same condition.
When we were traveling down the river, little kids hopped on our boat and tried to sell drinks. Sometimes a mom with their kids would park their boat beside ours and beg for stuff. It was sad to see little kids working in 40C degrees and blazing sun all day when they should be in kindergarten, and really reminds me of how lucky we are to live in a society where welfare is accessible and no families have to live in these conditions.