Top 10 Things to Do in Honolulu

1. Explore Waikiki Beach

Waikiki is a beachfront neighborhood of Honolulu on Oʻahu’s south shore that developed from wetlands and royal retreat lands into Hawaii’s best-known resort district during the 20th century. The shoreline includes multiple named beaches along a broad coastal strip fronting hotels, parks, and historic surf breaks. Tourism growth accelerated after the opening of the Ala Wai Canal in 1928, a drainage project that reshaped local hydrology and enabled urban development inland of the beach. Waikiki is also central to modern surf history, associated with figures such as Duke Kahanamoku in the early 1900s. Today the area combines high-density hospitality infrastructure with public shoreline access and major cultural events.

2. Explore Diamond Head

Diamond Head, called Lēʻahi in Hawaiian, is a volcanic tuff cone on the eastern edge of Waikiki formed about 300,000 years ago during Honolulu’s volcanic series. The crater rises roughly 760 feet above sea level and became a strategic U.S. military lookout in the early 20th century, with fire-control stations and bunkers still visible. The state monument includes a trail to the summit through switchbacks, tunnels, and old fortification structures. Its English name dates to 19th-century sailors who mistook calcite crystals for diamonds. Diamond Head State Monument is one of Hawaii’s most recognizable geologic landmarks and provides a clear example of Oʻahu’s volcanic origin and coastal topography.

3. Explore Iolani Palace

ʻIolani Palace in downtown Honolulu was completed in 1882 under King Kalākaua and served as the official royal residence of the Hawaiian Kingdom. It is the only formal royal palace on U.S. soil and includes architectural features influenced by Florentine and American styles, plus early electrical and communication systems for its era. After the overthrow of the Hawaiian Kingdom in 1893, the building was used as a government capitol for the Republic, Territory, and State of Hawaii. Restoration work in the 20th century returned many rooms to their late-19th-century appearance, and the palace reopened as a museum in 1978. The site is central to Hawaiian political history and sovereignty memory.

4. Explore Ala Moana Beach Park

Ala Moana Beach Park is a 100-acre public park between Waikiki and downtown Honolulu, created on reclaimed coastal land in the 1930s and 1940s. The shoreline includes a protected swimming area behind an offshore reef and a long sandy beach facing the south coast of Oʻahu. The park’s name means “path to the sea,” and the site became a major urban recreation space as Honolulu expanded after World War II. Facilities include courts, open lawns, a promenade, and access near Ala Wai Boat Harbor and Ala Moana Center. Its location and scale make it one of the most heavily used municipal parks in Hawaii for daily exercise, community gatherings, and ocean access. Park construction began in the 1930s, and major postwar expansion continued through the 1950s. The park is commonly listed at about 100 acres with roughly a half-mile protected swimming shoreline.

5. Explore Kaka‘ako

Kakaʻako is a Honolulu district between downtown and Waikiki that historically contained salt pans, fishing areas, and later light-industrial and warehouse uses. In recent decades, large redevelopment efforts led by the Hawaii Community Development Authority transformed much of the area into mixed-use residential and commercial neighborhoods. The district includes Kakaʻako Waterfront Park, opened in 1992 on a former landfill site, and a growing concentration of public murals and cultural events. Street grids such as Auahi, Cooke, and Keawe now combine new high-rise construction with older industrial buildings. Kakaʻako’s ongoing change illustrates contemporary land-use pressure in urban Honolulu and the policy debates around housing supply, public shoreline access, and local identity. Kakaʻako Waterfront Park opened in 1992, and major high-rise redevelopment accelerated after 2010.

6. Explore Pearl Harbor

Pearl Harbor is a natural lagoon harbor on Oʻahu’s south coast west of Honolulu and has been a major U.S. naval base since the late 19th century. The attack on Pearl Harbor on December 7, 1941, by the Imperial Japanese Navy brought the United States into World War II and remains one of the most consequential events in modern Pacific history. Today Joint Base Pearl Harbor–Hickam operates on the harbor, while memorial sites such as the USS Arizona Memorial and USS Missouri attract visitors. The harbor’s geography, dredged channels, and protected waters made it strategically important for fleet operations. Pearl Harbor links military history, memorial culture, and active defense infrastructure in Hawaii.

7. Explore Manoa Falls

Mānoa Falls is a waterfall in the Mānoa Valley uplands of Oʻahu, with a drop commonly cited at about 150 feet depending on seasonal flow. The trail to the falls passes through tropical rainforest with high annual rainfall fed by trade-wind moisture against the Koʻolau Range. The valley has long been significant in Hawaiian history and agriculture due to reliable water and fertile soils. Modern access is managed through designated paths and watershed protections because steep terrain and frequent mud create erosion and safety concerns. As part of Honolulu’s inland mountain landscape, Mānoa Falls contrasts with coastal Waikiki by highlighting the island’s rapid elevation changes and wet forest ecosystems. The waterfall height is commonly cited at about 150 feet, and trail access has been managed in modern form since the 20th century.

8. Explore North Shore

Oʻahu’s North Shore refers to the island’s northern coastal region, including communities such as Haleʻiwa, Sunset Beach, Waimea, and Kahuku. The area is globally known for large winter surf generated by North Pacific swells, with breaks such as Banzai Pipeline hosting major professional competitions. Historically, the region included plantation-era agriculture, especially pineapple and sugar operations, before shifting toward tourism, small-town services, and ocean sports economies. Waimea Bay and nearby heiau sites also hold deep cultural significance in Native Hawaiian history. Compared with urban Honolulu, the North Shore has lower-density development and a more rural road network centered on Kamehameha Highway. Seasonal wave cycles define much of its annual rhythm. The region includes communities spread along roughly 20 miles of coastline, and Pipeline events are held each winter season from November to February. Haleʻiwa sits near the western gateway, and Waimea Bay is about 9 miles east along Kamehameha Highway.