hi there anyone any ideas what I could get to take with us for a two week camp trip to use to lounge about/play on with our (will be then) 16 month old. A big piece of tarp springs to mind but tarp is quite heavy stuff and we have limited space in car. All the pic-nic rugs I have seen are tiny and standard playmats too flimsy (Something with a water resistant side would be great.) Any suggestions apreciated....