2 Best Sights in Oahu, Hawaii

Panoramas from this 760-foot extinct volcanic peak, once used as a military fortification, extend from Waikiki and Honolulu in one direction and out to Koko Head in the other, with surfers and windsurfers scattered like confetti on the cresting waves below. The 360-degree perspective is a great orientation for first-time visitors. On a clear day, look east past Koko Head to glimpse the outlines of the islands of Maui and Molokai.

To enter the park from Waikiki, take Kalakaua Avenue east, turn left at Monsarrat Avenue, head a mile up the hill, and look for a sign on the right. Drive through the tunnel to the inside of the crater. The ¾-mile trail to the top begins at the parking lot. Be aware that the hike up to the crater has numerous stairs to climb; if you aren't in the habit of getting occasional exercise, this might not be for you. At the top, you'll find a somewhat awkward scramble through a tunnel and bunker out into the open air, but the view is worth it.

As you walk, note the color of the vegetation: if the mountain is brown, Honolulu has been without significant rain for a while, but if the trees and undergrowth glow green, you'll know it's the wet season (winter) without looking at a calendar. Winter is when rare Hawaiian marsh plants revive on the floor of the crater. Wear a hat and take bottled water with you to stay hydrated under the tropical sun as there are no water stations (or any shade) along the hike. Keep an eye on your watch if you're here at day's end: the gates close promptly at 6 pm. To beat the heat and the crowds, rise early and make the hike before 8 am.

The name means "the heat," and, indeed, this windy, barren coast lacks both shade and fresh water (or any man-made amenities). Pack water, wear sturdy closed-toe shoes, don sunscreen and a hat, and lock the car. The hike is along a rutted dirt road, mostly flat and nearly 3 miles long (one-way), ending at a rocky, sandy headland. It is here that Hawaiians believed the souls of the dead met with their family gods and, if judged worthy to enter the afterlife, leapt off into eternal darkness at Leina Kauhane, just south of the point.

In summer and at low tide, the small coves offer bountiful shelling; in winter, don't venture near the water. Rare native plants dot the landscape, and seabirds like the Laysan albatross nest here. If you're lucky, you might spot seals sunbathing on the rocks. From November through March, watch for humpbacks spouting and breaching. Binoculars and a camera are highly recommended.