Taking babies on the beach
first of all, you should have a good sun protection for your baby. Baby's skin is much more sensitive and prone to burn faster. It's better if you're baby will be under a beach umbrella, not under the direct sunlight.
Hat is a must on beach! Also have lot of water available to drink. Breastfeeding babies should be nursed more often while on the beach.
I'm always afraid of big waves and it's not safe for a baby to play by big water. Consider to make a little blow up pool for them, bring their toys, and you can relax while your baby is busy playing.
We will be going to the beach in August.. baby's first trip! Although "technically" since I went to the beach a few weeks ago.. the baby has already been.. right? haha
I am like you too in the I think it would be scary to take baby near big waves, but I would maybe let them go where they can get their toes wet.