After a few hours, when the water is frozen solid, add a little more water, but not too much, because you don't want the first layer to melt and dislodge from the bottom of the tub and float to the top.

Add water and let it freeze until the tub is completely full of ice. Dump the sand out of the bottles and carefully re-fill them with warm water. I recommend using a funnel, because any warm water which spills out onto the ice will hasten to ruin the ice block itself.

In mere moments, the ice around the bottles should melt enough to pull them free. Carefully invert the tub and slip out the entire block of ice.

Now your ice block is complete! Store in the freezer until ready for use. Fill with cold beer for best results.

Tests show that the block will hold the bottles for more than three hours when placed outside on a 72-85 degree day, however a steady runoff will flow after about 40 minutes.

In tests the bottles did not fall over and break, they remained standing until all the ice had melted, but your results may vary, by which I mean that they might roll off and shatter.

I did not test whether a fully laden ice caddy will float in the pool, but I'm pretty sure it will.

I hope you have enjoyed this ridiculously long article on making a beer caddy out of solid ice. I hope it was worth the effort.