I have received notification that I am on the waiting list for a summer program, and I really would love to go to it! Would it be appropriate for me to reply to the email thanking them for their message and saying that I hope to be offered a place this summer? Thank you all for any advice or thoughts!
Yes, definitely let them know you are interested.
Absolutely agree. It would also be OK to ask if the waiting list is ranked and to check back a while later to reiterate your interest. (as long as you don’t become a nuisance!)