Taking a cell phone is a really good idea. In the days I was canoeing a lot it was not an option as they were few and far between. I miss it, I've not done it for ages - a story about a dry suit that did not fit well.................mmmmmmmm capsize, stuck in a stopper( a bit like being in a spin drier) michelin man, drinking the river trent........oooooh never again.