Thanks all! OP here. We do have a yard and live in a safe neighborhood with other kids - so the oldest spends a lot of time with friends in and out of each other's houses or playing with his sister outside or riding bikes. I was thinking it would be easiest to spend most time at home playing because of naps and I think it's harder keeping an eye on them elsewhere than at home, but I will definitely provide a list of activities and places to go for when they want to get out - she will have a car and I have a feeling the baby will just need to learn how to nap on the go and we can worry about a more routine nap schedule in the fall

. The local LLC is great and gets the local au pairs together often and I just emailed her to ask if there are any right in our town (we're in Anne Arundel Co) to try and hook her up with local folks for play or park dates. We don't have family near to help, and I had decided against sending the older ones to camp because I thought having to coordinate around specific pick up and drop off times may get stressful for her, but I'll take another look at local places (the camps I looked at before were 20+ minutes away which seemed like a long round trip). And I can make sure she gets all nights and weekends off through the summer. We're hoping to do a lot of fun stuff on the weekends this summer because we can't go on vacation like we typically do, so hopefully she'll want to join us and we will be able to treat her. And my husband and I may be able to take an extra day off here and there that would be extra days off for her.