In part 4 of Great Oahu Hikes, I visited Lanikai Pillbox. Overlooking Lanikai Beach, the Lanikai Pillbox hike is roughly 1.8 miles with about a 500 foot elevation gain. This hike is one of Oahu's best, because it's a great all-around hike for everyone.
This is the hike for you if you want a relatively easy hike on Oahu. This hike is one of the most popular on the North Shore of Oahu, Hawaii, so expect to see many people of this hike. This easy hike can be easily done in half a day.