Confident hikers can take a full-day hike along the Nā Pali coast on the challenging Kalalau Trail. The eleven-mile hike is tough, but the waterfalls, stunning beaches, and lush valleys make it worth it. Alternatively, the first two miles from Ha’ena State Park to Hanakapi’ai Beach is far more accessible and equally rewarding.
Just across the street from Ha'ena Beach Park (look for mile marker 9) hides a large, dry cave, about 150 feet deep. It's an easy walk that's fun for kids. Bring a flashlight.
A five-minute hike leads to a spectacular tidal pool surrounded by lava rocks. It acts as a relaxing holding pen for would-be cliff divers with their eyes on the ocean below. But jumping is a summer-only pastime, when surf is calm. Check the surf report and make sure waves are less than four-feet high before heading out to the spot.
Near Lihue, a 173-foot waterfall cascades 80 feet — and can be easily seen from Maalo Road. Visit in the morning for a good chance of spotting a rainbow in the mist.
The lush gorge — about 10,000 miles long and 3,600 miles deep — is referred to as the Grand Canyon of the Pacific. It's incredible to see by helicopter, but there are plenty of breathtaking trails and challenging hikes. Two lookouts, Puu ka Pele and Puu hinahina, offer crazy views of paradise founds. And plenty of rainbows.