Hanauma Bay Closed? Where to Snorkel Instead

Facts from the City’s lifeguard list, HTA’s beach page and the City’s Hanauma page, checked Oct 13, 2026.

Hanauma Bay Nature Preserve is open Wednesday through Sunday, with entry from 6:45 a.m. to 1:30 p.m. It is closed Mondays and Tuesdays, plus Christmas Day and New Year’s Day (City Parks and Recreation). Reservations open two days ahead at 7 a.m. Hawaiʻi time, and the City warns tickets “could sell out as fast as 5 minutes” (City reservation page). Walk-in tickets go out first come, first served from 6:45 a.m., and they are limited.

Two closures are on the record. The preserve shut August 3 to 18, 2026 for sewer work, and the City expects a second closure in early 2027 when a new lift station comes online, with no dates yet (City notice, July 2). Check the City page before you fix a date.

HAWAIʻI Magazine readers named Hanauma Bay the best snorkeling spot on Oahu in 2026, and Shark’s Cove, the Ko Olina lagoons, Kahe Point and Three Tables were their next four picks (HAWAIʻI Magazine). Lifeguard towers run 8 a.m. to 6:30 p.m. daily (Honolulu Ocean Safety). The skill groupings are our own calls, not official ratings.

Sans Souci, at Kaimana Beach, is the closest swap for a beginner. The Hawaii Tourism Authority calls it “one of the best family beaches in Waikīkī,” “shallow, sandy and free of strong currents,” and lists it as a snorkeling destination with parking, restrooms, showers and a lifeguard (HTA). Tower 2H stands at 2815 Kalākaua Avenue. It is the swap, not an equal: nothing in HTA’s description promises a coral garden, so set your expectations accordingly.

The reef flat off Kapiʻolani Park is the Waikīkī Marine Life Conservation District. The state says the flat runs about 35 yards out from the Waikīkī Aquarium seawall to a dredged channel, with water “generally less than 3 to 4 feet” over it. The bottom is “mostly rubble and coralline algae with some small patches of live coral,” and most fish gather along the channel’s shoreline side, the Natatorium wall and the exposed outer reef (DLNR). Visibility is best with little or no wave action. Summer swells bring high surf to the south shore, most dangerous at the outer edge where reef is exposed, so stay on the flat. Towers 2E and 2F cover it, and it has restrooms, showers and a snack bar. Nothing may be taken (MLCD rules).

Kūhiō Beach is divided by two concrete walls, which earns it the nickname “Kūhiō Ponds” (HTA). With the walls and Towers 2B, 2C, 2DP and 2D, it is our pick for wading with small children. It is a swim basin, not a reef. The state was aiming to start a sand and groin project on the basins this fall (DLNR), so ask the lifeguard what is open. For parking at any of these, see our Waikiki parking guide. Our Waikīkī beaches guide walks the rest of the shoreline, and things to do in Waikīkī covers what to book around it.

The Ko Olina lagoons are four lagoons, which HTA describes as man-made and “a perfect beach for families” (HTA). The resort’s own page is blunter about the risk: “There are no lifeguards on duty, guests swim at their own risk.” Public parking is in designated lots from sunrise to sunset, first come, first served. Rules ban pets, drones, alcohol and non-reef-safe sunscreen (Ko Olina). The page says nothing about snorkeling or seasons, so read the water first. Our Ko Olina guide covers the resort side.

Kahe Point, nicknamed Electric Beach for the nearby power plant’s warm cooling water, is a different animal. HAWAIʻI Magazine says snorkeling there is “recommended for strong swimmers only” (article, August 2025). The City’s record backs that up: Tower 40 opened August 3, 2023 and made seven rescues in its first month (City), and on September 26, 2022 six visitors snorkeling there, four adults and two children, were pushed offshore and pulled out (City). The magazine advises mornings and avoiding winter, when the state expects extremely high surf on west shores (DOH). A boat trip reaches the same coast without the shore entry.

The Pupukea Marine Life Conservation District holds Shark’s Cove and Three Tables. The state says “from about May through October the water is generally calm, but surges are possible,” and in winter “current and wave conditions become extremely dangerous” (DLNR). Shark’s Cove is shallow with depths to about 20 feet at its mouth, and visibility is usually poor inside the cove and better outside it. Tower 28 covers Shark’s Cove, Three Tables and Keʻiki Beach (City, March 2026).

From November on, skip it. Parking, the bus and the rules are in our Shark’s Cove guide, and the full island-wide list is in Snorkeling on Oahu.

Pick by who is getting in the water and by the month.

• First time with a mask: Sans Souci. It is shallow and it has a tower.
• Small children: Kūhiō’s walled basins have lifeguards. Ko Olina’s lagoons do not.
• Confident swimmers, May to October: Shark’s Cove and Three Tables, with Tower 28 nearby.
• Strong swimmers only: Kahe Point, on a calm summer morning.
• November to April: Favor the south shore, where the state puts its larger swells in summer. It expects extremely high surf at many north and west shore beaches in these months, so check the signs at Ko Olina too.
• Prefer a boat: A guided trip skips the shore entry. For a sail without the snorkel, see our Waikīkī sunset and catamaran cruises.

The state Department of Health: “More Hawaii visitors drown while snorkeling than during any other activity.” It advises a buddy, a flotation vest or belt, and a check of ocean conditions before you enter the water (DOH). Oahu lifeguards post warning signs rather than colored flags, and the City says box jellyfish regularly swarm to south and leeward shores 9 to 10 days after the full moon (Ocean Safety); the Waikīkī Aquarium keeps an estimate calendar. See also whether it is safe to swim on Oahu today.

Give wildlife room. NOAA asks you to stay at least 10 feet from sea turtles, at least 50 feet from Hawaiian monk seals and 150 feet from a mother with a pup, and federal law bars swimming within 50 yards of spinner dolphins (NOAA Fisheries).