We used to do the cooler with ice but finally broke down and rented the fridge. It is only $10 a day and yes that does add up when spending 10 days at a time, but to us it is worth it. I hated having to fill the cooler up in the morning before going to the parks and then having to empty it and refill it again at night before going to bed. Everything was wet and drippy. What a mess! Too big a pain for me. Now we rent the fridge and don't have to deal with it. Also the fridge has a tiny freezer section that comes in handy for thos pints of Haagen Daas they sell in the gift shops! We also have the electric cooler that we use in the van for the drive down but it is still too small for our bottles of water. If you get a fridge for 7 days or more you also get it guarranteed as ooposed to a request.