The total elevation difference for Windy Lakes Trail is 1,381 feet which is about average. This is a one trailhead backpacking and hiking trail, so you'll be backcountry hiking it in and back out. You should count on this backcountry walk taking about 7 hours, but of course some people walk a bit slower and some a bit faster. There's not much difference in elevation along the trail which means the conditions are about the same from start to finish. Windy Lakes Trail is quite long, so do pack enough food to last the whole trip. This neighborhood does get very dry sometimes, so do check for current fire restrictions before you go if you plan to bring a stove or make a camp fire. Being 8 miles long it's a mid length backcountry trek.