Ultraman Hawaii is a 3 day circumnavigation of the Big Island of Hawaii.
Day 1 starts with a 6.2 mile swim from the Kailua Pier down the coast to Keauhou Bay, followed by a 90 mile bike ride up to Volcano National Park.
Day 2 is 170 miles on the bike, starting with a long descent from Volcano down to Hilo, followed by a scenic tour of the coastline before heading inland to Waimea, up and over the Kohala mountains, ending with a fast 13 mile descent into Hawi.
Day 3 is a brutal double marathon, starting in Hawi and ending in Kona. Basically you run the second part of the Ironman Hawaii bike course!