Question: How can I keep ice from melting for as long as possible?
When trying to store food and drinks in a cooler, which would be the best way to stop the ice from melting for as long as possible in order to keep the food good and the drinks cold?
Answer: "Learning it the hard way, we now take block ice and put it on the bottom of the cooler. It may last 4-5 days in contrast to a day for ice cubes. It can be purchased at convenient stores, or you can make it yourself by filling empty milk 1/2 gal cartons and freezing them." - Don, About Camping Reader
Here's what former Camping Guide, David Sweet has to say about melting ice.