I am a Kali River Rapids fan. In about 98% of the times I've ridden, I'm the one that gets drenched. So much that my husband will wear his bathing trunks and sandals when we go so he's prepared for the day.
Me? I don't care. I wear sneakers and normal clothes. I have a cell phone with me in a canvas bag or a backpack (both small ones). I've never put the phone into a zipper bag but do have a cover for it but it's not waterproof. Phone is fine, if my sneakers and feet get totally soaked, I use Disney paper towels if I really need them but other than that, I squoose.
I figure I'm on vacation, my sneakers will dry, my socks will dry, my feet will dry. And I had a great trip down the drop backwards.