Facilities here are limited to bathrooms, and there's adequate snorkling. Continuing south my next recommended beach is the public access beach at the newly opened Hualalai Four Seasons, next to the Kona Village. This is a beautiful beach and not many people seem to know about it. It is sheltered and usually quite uncrowded, especially if you are willing to walk down the beach. It's right next to Alii Drive, it's crowded and noisy.
Facilities are complete including a snorkel gear rental concession.
There are several turtles that live there. Please remember it's against the law to harass or chase them. If you have never tried snorkling, perhaps a bit wary of the whole thing, you won't find a better place or safer to try it out. Kahaluu is protected by a breakwater and has an amazing variety of fish. Further south is the City of Refuge, which is a national park.