Idaho Sky Down Skydiving Located in Treasure Valley Executive at Caldwell, about 25 miles west of Boise. 5111 Aviation Way, Caldwell, ID 83605 (208) 455-2359 http://skydownskydiving.com/ Mon: 8am – 8pmTue: 8am – 8pmWed: 8am – 8pmThu: 8am – 8pmFri: 8am – 8pmSat: 8am – 8pmSun: 8am – 8pm