Beach with Baby

Mari Ann
So we are headed to the Gulf coast in October and my baby will be 3 months old. What kind of sunscreen do you recommend? What kind of bathing suit? We have a tent we set up so he will be in that, and obviously not outside for long stretches of time, but I know I've seen a little portable bed/co-sleeper something that has mesh sides but I don't know the name, so I'd love suggestions. Anything else I need to know? Especially with traveling 12hrs with an infant? Thank you in advance!!!