8 Best Things To Do In Oahu Hawaii (Fun, Couples, Free)

1. Hike The Trails

Oahu island has almost 300 documented hiking trails, featuring jagged green mountains, coastal views, jungles, and waterfalls.

2. Visit The Pillboxes

During World War II, the U.S. military built concrete bunkers all around the island of Oahu as lookout posts for spotting enemy activity.

3. See The Waterfalls

There are dozens of nice waterfalls on Oahu island, and they can usually be reached with a short, easy hike through the jungle.

4. Climb The Stairway To Heaven

This hike is so amazing it deserves a special mention. It’s also epic, scary, and slightly illegal. Still interested?

The infamous ‘Stairway to Heaven’ takes you to the top of the Ko’olau mountains via 3,922 metal stairs of pure adrenaline and doom. At some points, the stairway is almost vertical, clinging to the side of the steep mountain.

5. Climb A Volcano Crater

Another famous hike in Oahu that deserves a special mention is the Koko Crater Trail! This one is an endurance test that takes you up 1,048 stairs on the steep slope of an extinct volcano crater.