This is a one trailhead backpacking and hiking trail, so you're looking at an in and out backcountry trek. This is a long great outdoors trail, so make sure you bring plenty of supplies. Bumping Lake Trail stays roughly within the same elevation zone the whole time, so you get pretty much the same conditions along the whole hiking and backpacking trail. Bumping Lake Trail has a total elevation difference of 792 feet which is a lower than average number. With its 18.2 miles of walking distance; it's a long hiking and backpacking trail. Now, this is roughly a 2.5-day backcountry hike, so it's a perfect thing if your backpack is big enough to do the job.