KA'ENA POINt TRAIL
This is a moderate to easy hike that's good for people of all ages. If you want to do the entire hike, it's 5 miles out and back, but there's plenty to see if you wish to make it a shorter hike. To get to the trailhead (northern route) take the H2 Freeway going north and then stay on it until the freeway ends and it becomes Wilikina Drive, which becomes Kaukonahua Road, which becomes Farrington Hwy .Basically just keep taking each left fork until the paved road literally ends. Then you’re there. There’s a large dirt parking lot at the end of the road on the right.
The trail to Ka‘ena Point follows an old railroad bed and former dirt road that ran along the westernmost point of O‘ahu. The trail leads to Ka‘ena Point Natural Area Reserve, a remote and scenic protected area where you can expect to see Hawaiian Monk Seals and the nesting grounds for the Laysan Albatross. Humpback Whales also frequent this shoreline during the winter months.
The weather is usually sunny and hot, and it can be quite windy – a hat, sunscreen, and plenty of water are recommended. Allow 1 to 3 hours depending on your pace. Stay away from the wave-exposed coast unless you are familiar with hazardous ocean conditions.
Koloa Gulch is an 8 mile roundtrip waterfall hike that leads to a massive waterfall (or 2 if you have time) in back of this Hauula valley on the windward side of the island. While long, the hike is not difficult as there are no strenuous inclines or declines save for the very beginning of the trail. Caution is warranted as flash floods would be extremely dangerous at certain portions of the hike and one must be careful of falling rocks as well. It is still a fairly tiring hike but delivers an excellent waterfall for those who make it to the end.
HAU'ULA LOOP TRAIL
Hau'ula Loop Trail is a 2.5 mile lightly trafficked loop trail located near Hau'ula, Hawaii that features a waterfall and is good for all skill levels. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail. The hau tree is a native hibiscus with a yellow flower that blooms red before it withers and dies; ula is red in Hawaiian, and this area is named after the red hau flower. The Hau'ula Loop hike was one of the first paths constructed by Hawaii's early forestry program. Consequently it is a thoughtfully laid out, contoured trail with inclines and switchbacks. The guava-lined path leads to vistas that look down into deep, narrow gulches.
Parking: You can park right at the yellow gate and then head up the paved road to reach the trailhead. Parking here is okay, but only enough room for a few cars. There are also signs saying it is a high theft area and you are supposed to leave the parking area by 5PM. We parked here and had no problem but some reviews suggested parking at the beach park down the road and across Kam Hwy for more visibility.
La'IE FALLS TRAIL
Laie Falls Trail is a 7.9 mile moderately trafficked out and back trail located near Laie, Hawaii that features a waterfall and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Horses are also able to use this trail.