So we're going to Alaska next week and we're booked on a kayaking trip (2 person kayaks). My worry is my camera. I don't think I will have room to bring along the backpack, so likely I would simply have it around my neck the entire time. Would you be worried with the weather (possible rain) and water (big ocean) messing up the camera? We do have pocket options, but I want to use my 70-300VR to capture some wildlife. I did pick up some rain sleeves for the camera which would protect it a bit. Thought?