I don't think a ziplock, camera, water slides and pool go together at all... Just my thought but I wouldn't want to risk my camera getting wet or damaged. We did Atlantis (dayroom) a couple years ago...and let me tell you from experience....those water slides can be rough. You get going SOOOO fast down them and bang from one side to the other all the way down.
Anyhow this is what we did.
1. We packed knowing we were going to be at the beach, near/in water...there for we didn't feel we needed to take a whole lot.
2. The nice thing about the keys (from the ship and from the hotel) is they are the credit card sized plastic things......so a waterproof box on a lanyard works perfect for keeping them safe and dry.
3. Cash...we never plan on taking ALOT of cash off the ship...but did have some and our credit card...which also fits nicely in the waterproof box on a lanyard. (they come a various sizes...a small one that'll hold 3 or so cards..and a larger one...big enough to hold a pack of cigs..or alot more cards and some cash
)
4. We purchased a waterproof camera case for our camera (planning on taking it snorkeling)....but turned out it worked wonderful at Atlantis. I kept it around my arm the whole time (except for the time DH left it laying out on our loung chair
). I was suprised that none of the lifeguards or pool attendants said a thing about having it with me while doing the slides.
5. As for everything else....we took one of the
DCL stollers with us (not knowing how much walking we'd be doing)....and just packed/piled the rest of our things in it...which was really only the clothes we had on.
Atlantis has towels that they give you to use for the day (if you keep them your charged)....and like many others have already said there are no lockers...after all this is a resort...and they don't figure any of the guests need to "store" their things for the day when they have a room to keep it in.
Hopefully your room will be ready when you arrive so you can leave what ever you wish in there for the day....but on the off chance it's not...I'd just go prepaired with a plan on what you'll do with what ever you decide to bring. Our room (at Atlantis) wasn't ready until the afternoon....so we didn't have the chance to really even use it....we actually just stopped by the room to check it out as we were getting ready to head back to the ship.
Another item....FYI.....the food at Atlantis is SPENDY!!! We ordered two kids chicken nuggets and four bottles of water...and were charged over $25. Now for that I would have expected those kids nuggets to be darn good...but to our suprise they were JUST like McD's
and the water bottles...they were SMALL 6oz bottles
. So go prepaired to either spend ALOT....bring your own....or just eat a big breakfast before leaving the ship and waiting for dinner on the ship later that day....