Home made grill

A friend of mine is on a temp assignment in the Bahamas and he posted a picture of the following cooker. I never saw something like this before, I asked for some pics while it's in action, perhaps he will post some tomorrow, if so, I will share.

Looks interesting. I'm guessing the wood burns to coals, the coals get moved over, under the food. The aluminum sheet reflects the heat. Kinda' cool.