Make a reservation for Pearl Harbor National Memorial’s USS Arizona Memorial Program, and your ticket is free! You'll only have to pay a $1 service fee..
Ho’omaluhia Botanical Garden is one of the best free activities on the island. We recommend arriving as soon as it opens at 9 a.m. to avoid the crowds.
One of our best Oahu travel tips is to check out this 10th-floor view, providing incredible views of the Honolulu Harbor and the Koʻolau Mountain Range.