Waimea Canyon in Oahu, Oahu, United States | Canyon

Waimea Canyon is the largest canyon in the Pacific and truly a dramatic sight to behold. The canyon measures 10 miles long, 1 mile wide, and more than 3,500-feet deep. It was carved thousands of years ago by rivers and floods that flowed from Mount Waialeale's summit. The lines in the canyon walls depict different volcanic eruptions and lava flows that have occurred over the centuries. Even though smaller than the Grand Canyon of Arizona, Waimea Canyon rivals the beauty. Numerous lookouts and hikes offer terrific views of every aspect of this natural wonder. The canyon is protected by the Koke'e State Park which encompasses 4,345 acres of land and has 45 miles of trails that run through the canyon and the nearby Alakai Swamp. The Ranger's Station is located at the Koke'e Museum has hiking maps of the area. There are no gas stations along the 40-mile Waimea Canyon Road so be sure to fill up before starting this trip. The main park area provides restrooms. The elevation makes the air 10-15 degrees cooler than in the valley and by afternoon many areas are often shrouded in clouds.