Known as Leahi in Hawaiian, named Diamond Head in the 19th century by the British who thought they discovered diamonds in the crator. They were calcite crystals that were worthless. Diamond Head was formed over a 100,000 years ago. Diamond Head was used as a strategic military lookout in the early 1900's. Diamond Head was named a National Natural Landmark in 1968. Diamond Head is a hiking destination with excellent views of Waikiki and the Pacific Ocean.

The Zoo is 42 acres and 1,000 different animals from the tropics. Komodo Dragons, orang-utans, elephants, primates, birds, reptiles, amphibians, and a variety of African animals can be seen daily. Be sure to see the wildest place in Waikiki. The zoo is administered by the City & County of Honolulu through the Department of Enterprise Services. Its support agency, the Honolulu Zoo Society, provides fundraising and program services for the zoo.

Kapiʻolani Regional Park is the largest and oldest public park in Hawaiʻi, located in Honolulu, Hawaiʻi on the east end of Waikīkī just beyond Kuhio Beach Park and the Waikiki residential neighborhood. The 300-acre (1.2 km2) park, named after Queen Kapiʻolani, the queen consort of King David Kalākaua, is home to the Waikiki Shell and the Honolulu Zoo.

The Waikiki Aquarium is a marine science institution in the City and County of Honolulu and the State of Hawaii. Founded in 1904, this marine aquarium is the third oldest public aquarium in the United States. Since 1919, the Waikiki Aquarium has been an institution of the University of Hawaii System. Built near a living coral reef on the Waikiki shoreline, the Waikiki Aquarium is home to more than 3,055 organisms of 464 species of marine plants and animals.

You'll see a range of hibiscus plants and dozens of varieties of roses, including the somewhat rare Hawaiian rose. The tranquil gardens are always open and are a great place to wander and relax.