Originally Posted by Janszoon

It where they grow cranberries.

They work the same way as rice paddies. They're flat, dry patches of land with canals surrounding them for most of the year, but when harvest time comes they flood them about waist-deep with water. The cranberries float and the workers wander in with hip waders on and use these rake-looking things and big floating barricades to corral the berries over to the edge of the water where they're scooped up and loaded onto trucks. Here's a picture of harvest time: