Oahu has more than 60 beaches, ranging from the world-famous to the nearly unknown. Here is where to go depending on what you are looking for.
Waikiki Beach is the most famous beach in Hawaii and one of the most recognized stretches of sand in the world. The mile-long crescent of beach is calm year-round, protected by an offshore reef that tames the Pacific swell and creates gentle, forgiving waves ideal for beginner surfers and outrigger canoe rides. Diamond Head rises at the eastern end of the beach, providing the backdrop for what is arguably the most photographed beach scene in the Pacific. The beach is crowded (there is no pretending otherwise) but the infrastructure is excellent: lifeguards, restrooms, beach chair rentals, and surf lesson operators are all present. The sunset from the beach, with the sky turning orange behind the hotel towers, is genuinely spectacular and free. Lanikai Beach is the most beautiful beach on Oahu and one of the most beautiful beaches in the world; a claim that is made often in travel writing but is, in this case, accurate. The sand is powdery white and fine, the water is a shade of turquoise that seems implausible until you see it, and the twin Mokulua Islands sit just offshore, close enough to kayak to in about 30 minutes. The beach is in a residential neighborhood with no commercial facilities (no parking lot, no restrooms, no vendors) which keeps the crowds manageable. Park on Mokulua Drive and walk through one of the public beach access paths between the houses. Arrive before 9 a.m. on weekends. Kailua Beach Park is the best family beach on the windward coast; a long, wide crescent of white sand with consistent trade winds that make it the best windsurfing and kitesurfing beach on the island. The water is calm and clear, protected by a reef, and the beach is long enough that it never feels overcrowded even on busy weekends. The town of Kailua is a five-minute walk from the beach and has the best independent restaurant and coffee scene outside of Honolulu proper. Kayak rentals are available at the beach for the trip to the Mokulua Islands, which is one of the best half-day activities on Oahu. Sunset Beach on the North Shore is the most legendary surf break in the world; a long, powerful right-hand point break that produces waves of 20–30 feet during the winter swell season from October through February. The Eddie Aikau Invitational, held at Waimea Bay nearby, is the most prestigious big-wave surfing event in the world and is only held when waves reach 40 feet. In summer, the same beach transforms completely: the swell disappears, the water turns calm and clear, and Sunset Beach becomes one of the most beautiful swimming beaches on the island. The contrast between the two seasons is one of the most dramatic in all of beach culture. Waimea Bay is the most dramatic beach on Oahu; a wide, deep bay flanked by rocky headlands, with a large rock on the north side that is the most popular cliff-jumping spot in Hawaii. In summer, the bay is calm enough for swimming and the rock jump (about 25 feet) is a rite of passage for visitors. In winter, Waimea Bay receives the largest rideable waves on the island; the bay can close out completely with walls of white water that are visible from the road above. The transformation is startling and worth seeing even if you have no intention of entering the water. Ala Moana Beach Park is the beach that Honolulu residents actually use; a long, calm stretch of sand adjacent to Ala Moana Center, protected by a reef that creates flat, clear water ideal for lap swimming and paddleboarding. The park is large and well-maintained, with picnic areas, sports courts, and a boat harbor at the west end. The beach is significantly less crowded than Waikiki despite being just two miles away, and the local crowd gives it a more authentic character. It is the best beach in Honolulu for a long swim without fighting surf or crowds. Sandy Beach on the southeast coast of Oahu is the body surfing capital of the island; a short, steep beach with a powerful shore break that produces the best body surfing conditions in Hawaii. The waves here are fast, heavy, and break directly onto the sand with tremendous force; the beach injures dozens of visitors annually who underestimate the power of the shore break. Experienced body surfers and boogie boarders love it. The backdrop is dramatic; Koko Head crater rises behind the beach and the coastline curves away toward Makapu'u Point. Do not enter the water here unless you are an experienced ocean swimmer who understands shore break. Hanauma Bay is the most protected marine ecosystem on Oahu; a nature preserve inside a volcanic crater that has been managed as a marine life conservation district since 1967. The snorkeling is world-class: the shallow inner reef is home to hundreds of species of tropical fish, sea turtles are frequently seen, and the water clarity is exceptional. The city requires advance reservations through an online system that opens 60 days ahead; the bay also requires all visitors to watch an educational video before entering the water. Arrive early, the parking lot fills by 9 a.m. on most days and the bay closes when capacity is reached. The reservation system and the educational requirement are not obstacles but investments in the reef's survival. Water safety notes: always check conditions before entering the ocean on Oahu. The shore break at Sandy Beach injures dozens of visitors annually. Rip currents are present at many beaches, particularly on the North Shore in winter. Reef-safe sunscreen is required by Hawaii state law; products containing oxybenzone or octinoxate are banned.
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