Diamond Head (761 feet) (Le'ahi) State Monument Elevation Gain: 560 feet Trail: Diamond Head Trail Distance: 1.6 miles roundtrip Duration: 1.0 hours Difficulty: Easy to Moderate Trail Brochure: PDF Danger: Low The iconic volcanic tuff cone on the island of O'ahu. It was about time I added this summit to my peak bagging list, so I spent some time after lunch checking it out. At the toll both I paid my $10 and waited for 5 minutes for available parking. There was a long line at the yellow shave ice truck parked at one end of the parking lot. And many visitors who had made the trek in the morning, were coming down the trail. Enjoy some photos I took of my visit to this popular destination!