What are fun things to do after prom?

My senior ball is June 3 and my friends and I are trying to come up with something fun to do after. Our school hosts an afterglow so we don't need anything for Friday but we don't know what to do for Saturday/Sunday. We can't go camping that has already been ruled out. Please don't say get drunk, do drugs or have . We don't want that. We really just want to know what are some fun things we can do even if it's over night. We looked at the Great Escape lodge if that helps. Also we are in upstate new york. thanks for your help!