Camping, exploring, hiking in Adirondacks

I'm going to be driving from Ohio to Rhode island for an internship, and I want to make a trip out of the drive there. I'm planning to stop in the Adirondacks to do some hikes. Primarily looking to just car camp. I need suggestions on 1: good places to car camp, 2: good day hikes to do 3: some towns or places to explore! I'm also looking for any certain campgrounds or places that I can take showers at. I have 3-4 days to spend there so any suggestions are appreciated! I'm also bringing a dog so places that are dog friendly too would be great!