Just called the park to find out costs etc. It is $15/night for a campsite, which is for <= 6 people and 2 cars and 2 tents, + $2.75 amenity charge, + $4 weekend night charge. Group camping kicks in when you have >35 people.
I will reserve one campsite, and if we get more than 6 people definitely coming, I will reserve a second campsite, but we currently only have four people indicating that they'll definitely come. Speak up if you want to come, so we can get adjacent campsites!
There are also cabins available, but it looked like they were only rentable by the week, for a much more serious cost.
Also, remember to bring a water bottle and some snack food and maybe a backpack - we'll be starting and finishing each training exercise up at the top of the plateau, and for ideal recovery you'll get a quick bite to eat after you're done with training, before hiking back down the hill. Also, for when we're doing more than a single exercise up there, it's good to have some water between trainings.
I'd also bring bug spray.
And, if you can remember to bring a map case, that would be great.
As for food, we'll do a communal dinner on Saturday night (Ken is handling that), but bring some snack/lunch food for during the day, and definitely bring your own breakfast foods.