This paved trail runs along a large canal. It is covered with palm trees and those on the trail can enjoy watching outrigger canoeists on the water.

The 'Aiea Loop trail winds pleasantly through the foothills of the Ko'olua mountains. It is part of the Keaiwa Heiau State Recreation area. Water and restrooms are available at the trailhead. Along the hike you'll find the site of a wrecked Army bomber and near the trailhead is an early Hawaiian historic site. Watch out for muddy spots and downed trees you will have to crawl under or go over.

Diamond Head Crater is one of Hawaii's most famous landmarks and the hike to the peak is a must-do when visiting O'ahu. The trail is short, but steep and varied, including paved path, switchbacks, a tunnel and steep stairways. You are rewarded with panoramic views at the top. The trailhead is accessed at the Diamond Head State Monument. Hours are 6 a.m. to 6 p.m. daily. The last hikers must start up the trail by 4:30 p.m. The trail is exposed so bring plenty of water and sunscreen.

This trail runs along the top of the cliffs from Shipwreck Beach to Mahaulepu Beach. Along the way enjoy watching cliff divers at Makawehi Bluff. You'll also pass an old fishing shrine on the top of a large lava-rock platform. Look seaward for glimpses of whales, dolphins and shorebirds. Near the end of the trail, near the water at Kamala Point, look for the Makauwahi Sinkhole, a finger off Hawaii's largest limestone cave. Wear sunscreen and bring plenty of water.

This coastal trail offers great views. The terrain is mostly sandy, but sometimes grassy or gravel. The borders of the path are lined by white coral rocks. From April through December the surrounding dunes are nesting grounds from wedge-tailed shearers so stay on the trail. Watch the ocean for humpback whales. Full facilities are available in the parking area.

The first portion of this beautiful coastal ride is on a paved old agricultural road. The pavement ends just after Donkey Beach and dirt roads and trails wind across the coastline to Anahola. While the trails interconnect in many areas, stay towards the beach for the best views and to avoid private property. The trail joins paved roadway just before dropping into Anahola Beach.

This forest reserve trail is a peaceful haven away from the crowds of tourists. Attractions include views of the ocean and a small stream. Watch out for steep muddy sections of the trail. Bring plenty of food and water. There are no facilities available at the trailhead.

This loop connects several short trails in the Kalopa State Park Forest Reserve where you'll find native Forest. Going counterclockwise from the trailhead, start along the Old Jeep Road Trail. There are three different junction points along the trail. For the longest loop, take the third junction, Ironwood Lane. After a short time, this trail meets the Gulch Rim Trail which parallels the Old Jeep Trail back to the trailhead. It also junctions with Bubble Gum Lane and Silk Oak Lane which run between the Old Jeep Trail and Gulch Rim Trail. Complete your loop by taking the Robusta Lane trail back the parking area. This area is out of the way of the main tourist areas so it's a great place for a little solitude. It is also much cooler than coastal destinations, so consider some warmer clothing. Rain gear is a must. The Park is often wet and muddy. Don't forget your mosquito repellent.

This popular hike follows the Wiliwilinui ridge to the Ko'olau summit. The trail is wide and follows a 4 wheel drive road much of the way. Ropes provide assistance in some of the steeper parts. Hikers are rewarded with superb views of both sides of the island. Look and listen for the Japanese bush warbler. For a more challenging hike, experienced hikers can go left at the summit and go down the Lanipo Trail. Or, go right at the summit and go down Hawai'loa.

Also known as "The Stairmaster" this trail climbs up 1,000 plus railroad ties, the last remnants of the cable car track used during WWII to the now abandoned Air Force radar station at the summit of Koko Crater. Painted numbers on the right side of the tracks mark your progress. Temperatures climb in the afternoon, so start early and take plenty of water.