Can you freeze full water bottles? We're big water drinkers and want to take them into the park, but having them cold would be nice. Also, will we have any problems bringing a soft sided cooler (6 pack size) in with us?
The problem I have with freezing water bottles too full is that there is nothing to drink for quite some time! We prefer to freeze one roughly 1/2 full so that we have cold water to drink while we wait for the ice to melt!