What have you got going on for summer?

My kiddos are totally driving me bezerk and I just know that this summer is going to be one big test of patience, lol. I have been working on a weekly schedule of activities and field trips to keep them from being too bored (which in turn will help me keep my sanity). So far we have purchased season passes to the Denver Zoo and I am signing the kids up for swim lessons today. I am also considering getting season passes to Elitch Gardens (an amusement park), Water World (a huge water park), and the Children's Museum in Denver. Can you tell that I am desperate? LOL. Anyhoo, I am also working on scheduling little things that we can do around here such as planting seeds, making homemade ice cream, having a picnic at the neighborhood playground, etc. Anyone have any advice on things we can do or websites I can go to for ideas?