Yeah, I'm really looking forward to it, although it will only be a day trip; sometime soon. I'll keep my eye out for the second entrance - thanks.
One of the most important things is to get the rocks really hot so a second batch of wood might be necessary. I think instead of wood I'll bring charcoal. After the rocks are nice and hot (usually it takes about 1-1.5 hours, depending on the size of the rocks), you start to layer the food. The items that take longer to cook, you throw on the bottom, like potatoes, corn, onions, etc. (Wrap everything in aluminum foil.) Then you put on some seaweed over the layer for steam. On top of this first layer you might want to put like sausage, marinated chicken breast, maybe some broccoli; then more seaweed over top. The last layer is usually your quick things like clams, mussels, lobster. You top the final layer again with more seaweed, then over that put on a heavy cloth tarp, or some thick cloth material that you've soaked in the ocean. Snug the edges in real nice, and then cover the whole thing with sand. Wait about 1.5 hours (or, check the first layer to see if it's good and done), and then uncover everything. It's a wonderful experience. I'll post some pics.