On the stingrays tour we left our items in a zipped bag on the ship. There was no problem with items. At Dunn's I wish I had known what it would be like because I had a good camera that got a little wet and never worked right. My daughter also found out do not wear contacts because the area we were climbing there was a tremendous amount of water rushing down and we had to get out of the line and go back because she was worried about losing her eyes. Otherwise take very little with you and use a waterproof zipped bag. Happy sailing, this is a great iten and good excursions!