There is only one trailhead, so you'll be backcountry hiking it in and back out. This backcountry walk should take you about 3 days, so make sure you've got all your overnight gear packed. Puna Ka Trail stays roughly within the same elevation zone the whole time, so you won’t have to worry about different climate zones along your backcountry trek. Puna Ka Trail is 20.8 miles long; it's considered a longer backcountry trek. The total elevation difference for Puna Ka Trail is 607 feet which is a lower than average number. Puna Ka Trail is quite long, so do pack enough food to last the whole trip.