Like others have mentioned, it's a black sand beach. The white sand beaches are on the northern shores. I lived in the neighborhood (Alae Point) and volunteered for clean-ups on Wednesday mornings with Braddah Skibs!! He's there early, so stop by and say, "Howzit?"
What I love about this place is that it feels like "old Hawai'i." I can paddle out and ask, "Pehea 'oe?" and sometimes get an answer back in Hawai'ian. Kaua'i is the only other place where I can get that old Hawai'ian feeling of Aloha.
Sometimes the surf is really fun. When it's a big close-out day at Honoli'i, it's usually breaking cleaner at the Bayfront near the light house. If there's too much rain, the waters get dark and cold, so maybe try Pohoiki until it clears up.
I've seen whales breach less than 200 yards from the lineup, and the sound is like a canon. When the waves are calm, the honu (sea turtles) come close to shore. Those are good days to take out a Costco foamie. It's bad if you hit a honu with your fins, but on a foamie it's "mo' bettah" for you and for the honu.
The kama'aina (locals) are great. Just smile and be happy. Like they say, "Come with your Aloha, or don't come at all." Really, just leave all that c-r-a-p back on the mainland. Slow down, relax, and enjoy the day. You're on a beach on an island. "Planny" people fly by and never see the ripe bananas and papayas at the paka.
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One more thing, a number of stand-up paddle guys and some surfers have been wearing KSO Virbram Five-Fingers to protect their feet. To be honest, I've tried them, and "da bugga ok." read more