Durian plantations

There are lots of durian farms on the way to Teuk Chhou Rapids. It may be hard to communicate to a tuk-tuk driver that this is what you want to see, but a tourist office / travel agent can help you arrange it. There don't seem to be organized guided tours like for the pepper farms, but you can go to a plantation and ask for permission to look around – before you leave, buy some fruit as a thank-you. Even when durian is out of season it's mildly interesting; in January you can see the unripe fruit starting to grow.