If you are a Verizon customer, get a Casio G'zone Boulder, Rock or Brigade. Not quite the snazziness of an Iphone but it is completely waterproof to 3 feet for 30 minutes (some sort of military spec). Also drop proof from something like 6 feet.
One of my cousins was showing off her Chocolate Touch at a family reunion, we were comparing features. I asked her if hers could do this....and dropped it in a glass of water on the table. Her eyes got so big!

Then I threw it across the patio onto the concrete (not a scratch, has rubber edges) and it keeps on ticking!
If you had to have a phone you can't break and didn't have to worry about on water rides, this would be my choice, just not 'fancy' like an Iphone. The Brigade is a new model with a full keyboard for that thing you young'uns call 'texting.'