Will H.
Google
This was one of my favorite beaches. First, you will need to get a pass for the park. These are timed entry tickets and you can look online to see how to acquire those. It's a short hike to the beach itself, but we carried our snorkels, chairs, and backpacks no problem.
Snorkeling is very good, but there are two big rules: avoid the left side, where there are powerful currents, and do not stand on the coral! When you first get in, you will be in an open, sandy area with little marine life besides some nearly invisible quarter-sized crabs in the sand. I recommend going almost straight out and a bit to the right and hanging around where the sand meets the coral. I saw many fish/eels here that I never saw at other beaches.
It wasn't too crowded, but the beach was plenty busy and I never felt like I was snorkeling alone. Lots of shade on the beach as well, which was a lifesaver.