I'll admit that usually, my biggest worry at the beach is how we're going to get into the car without bringing half of the beach's sand with us. Not that I care terribly about the car getting filled with sand. But there are other, more impactful problems you should keep in mind as well, and here are some dangers for babies at the beach that you may not have thought about.
Sunburn is an obvious concern when you're going to the beach with a baby, especially when they're too young for sunscreen. However, you should keep in mind that rubbing sand in a baby's eyes, his feet getting burned on the hot sand, and contracting E. coli can be other serious dangers. The Huffington Post put together a thorough and also fairly comical roundup of dangers for beach-goers that includes falling coconuts and stingrays, but if your baby is simply hanging out on a blanket (far from coconuts and stingrays), there are other, more mundane but equally problematic concerns to take into consideration.
This isn't meant to scare you into staying home from the beach this year, but rather to help you keep in mind how to keep your baby safe when you do venture into all that sand.