Pupukea Beach Park encompasses 80 acres of a Marine Life Conservation District, with Shark's Cove near the northern side and Three Tables beach at the other end. The name "Three Tables" refers to the three flat reef sections that can be seen offshore at low tide.
The shallow water around them is great for snorkeling, while the drop right outside of the reef offers excellent diving opportunities, including views of lava tubes, arches, tropical sealife, and the ledges themselves.
Summer is the best time to snorkel, dive, or swim here, although there can still be sudden surges of swell, and it becomes very dangerous in winter (pounding waves up to 50 feet high!).
There are tidepools in and around the cove (but incidentally, no sharks), and even that protected area is unsafe when the surf is large. There is no lifeguard on duty around this bay and no facilities nearby. You are not allowed to take anything out of this protected marine sanctuary - even small shells or grains of sand - but enjoy the beauty and natural atmosphere while you're there.
The park's small parking lot is right on Kamehameha Hwy. in Pupukea on Oahu's north shore.
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