It's a fishing-park restaurant, lots of individual, straw roofed pavilions around a central reservoior full of fish. If you like, they'll lend you a pole and you can catch your own fish for them to cook. These restaurants are very popular in Thailand. This one is simply called, in English, "Fishing Park."
You may have noticed the heavy coats. This picture was taken in the third week of January, 2009, when this province in a more business as usual winter would have gotten hot again already. "Global Climate Change" is making some places hotter, and some places cooler, and some places, like France, both. Thailand could stand to be a little cooler, so it should work out ok for Thailand.