Hi dfrost, all but one (the dry cabin- I think they call it the Kamping Kabin) have kitchenettes and bathrooms. They have two cabins that are larger than the rest, not sure how big your group is. Otherwise the main cabins, where we've stayed- they're not huge but we (family of four) fit well and are able to cook, etc. They also have bbq's and picnic tables outside each cabin.
There is a little swingset for the kids as well as many boulders to climb and wildlife to watch. The last time we stayed there, we saw deer near the cabins every evening. The owners have chickens and allowed my daughters to feed them every day, which my girls still talk about!
There are good pictures on their website, and I'll add a picture I took of my daughter in the kitchenette a couple of summers ago...sorry I don't know how to make it smaller without it being tiny!