Beach Wear for Baby Boy!

Onestepahead.com sells UV-protected T-shirts and also swim tops. They're very cute, and even safer than sun-screen since they don't wear off. That's what I would do.

Sensational beginnings and One Step Ahead.com both have UV outfits with the short or long sleeve breathable UV protection shirts and shorts (my girlfriend stationed in Hawaii swears by them as her hubby and first son are red heads!). Hats and sunglasses if your daughter will let you are a must. And it goes without saying, but don't forget the sunscreen. You can (from the above websites and sometimes even at walmart still in the middle of winter!) get the individual towelettes.

A swim shirt offers complete uv protection

I also recommend at least a UV protective shirt. We took our son to St John USVI around that age and put him in a UV swim suit that had full legs and full arms and with a sun hat he didn't have any problems with burns. I would make sure you have 2 sun/swim outfits though. For obvious reasons and also since we found our son wasn't very comfortable once he got all wet in the ocean since he wasn't staying warm by moving around too much.

I also recommend bringing some kind of sun tent or shelter with you so you can set it up and put him in it for playing or eating so you don't have to worry about sun exposure on the baby while your daughter plays. We have a great tent we got off the internet that took up about as much space as a sleeping bag in our luggage but there are lots of them.

Ditto Denise! :)
Ditto the other mommies too. Too fast for me:)

The UV shirts are awesome! They are $8 at Target! Tons of sunscreen too!

I would go with a UV shirt. They even make some that are long sleeve. If you don't want to order from One Step Ahead or Land's End, Babies R Us sells them in the store. We also got my daughter a pair of sunglasses that had a strap around her head so she couldn't take them off.

A Baby sized Rashguard. They'll double by keeping him cool. They are SUPPOSED to fit skintight (like a girl's swimsuit isn't supposed to flop around).

My husband is a redhead. When we're somewhere sunny (CA, HI, Egypt, Costa Rica, wherever) he wears a longsleeved rashguard 24/7. He'll put a regular shirt on on top when he needs to be more dressed. He's also very sensitive to heat. So he just pours water over himself and the rashguard acts as a natural air conditioner. One of the problems with too loose rashguards (worn like tshirts, instead of tight fitting like they're supposed to) is that they make one TOO cold. You *really* don't want that. But fit properly they're super comfy and you don't get overheated or hypothermic.

http://www.quiksilver.com/family/index.jsp?cp=2981773.###...

I would keep a shirt on him at ALL times. and lots of sunscreen! that sun is HOT and his skin is so new and sensitive !!! Have a Great Vacation!!!!

I wouldn't. They make cute rash-guard shirts & swimsuits that match. I like Land's End. AND lots of sunscreen. Have fun!