Re: How to take a baby to the beach...?
Check with doctor but mine recommended topical type of sunscreen over chemical- look for ones with zinc oxide as the main component and it will make their skin kind of white- the same white stuff that lifeguards coat their nose with- there is less likelihood of a reaction.
Of course I had already been applying Coppertone WaterBabies with no ill effects so I kept doing that. The solid stick type is great because its easy to reapply where you need it (exposed skin).
I live in CA, we have a lot of sun and I wasn't going to keep myself or baby bottled up for the first 6 months, its basically impossible. Bring shade and have fun!