Hello, new to the site, and fairly new to detecting. I am going to purchase a new detector, and my options are garrett at pro, garrett sea hunter mark ii, and the Tesoro sand shark. I live in Missouri, and am going to use it while boating on the Mississippi river on sand bars, beaches, etc. That being said, we also go down to florida for two weeks, and I would like to use it on the beaches there also. I don't scuba dive, but do snorkel, but it will mainly be used ON the beach, so maximum water depth is not an issue for me. I know the at pro will have limitiations on wet salt water sand, but would it be worth getting the sea hunter or sand shark, mainly for the benefit of the two week vacation? I know I cant have it all in one detector, but I only want to purchase one detector. Thank you for the opinions.