Alua Beach is a nice dive except for the boat traffic entering and leaving Honokohau Harbor. You need to make sure you don't pop up out in deep water because there are lots of boats here. The bottom is great with lots of fish. The beach is a very easy entry when the swell is not up. Some locals say this is their favorite dive spot on The Big Island, but I like Honaunau and Mahukona much better. Easy entry and lots of people on the beach.