This is somehting interesting to do on a weekend and just a short drive from Bangkok. Thai country homestay homes about 1.5 hours drive from Bangkok in Samut Songkram:

http://trekthailand.8k.com/bansongthai/

In the morning you can see monks collecting alms by row boat. They also have thousands of fireflies illuminating along the canals at night.

In fact, the whole setitng is along a series of canals.