AKL question about baby and naps

[Camping Griswalds]

Our first 6 nights we are staying at POP with 2 rooms, one for kiddies (13 DS, 9 DS, and will be 17months DD), so I'm not worried about naps and going to be early. However our last 5 nights will be at AKL standard room , and only one room. What tricks do you use so the baby can sleep in the afternoons and get to bed early (probably 7:30 pm)? Also where do you put the pack in play? Thanks so much