Wow this hike is beautiful. Wonderful views of the Skagit river, Sauk Lake and Mt. Baker. This is a very busy hike but you can see why. Plenty of opportunity at the end of the switchbacks to allow others to pass. On the drive up and back too, you'll need to use cutouts to allow traffic to pass on the other side. Not much shade at the parking lot if you're leaving your pup in the car. There is a bathroom facility at the beginning of the hike. The elevation gain can be strenuous but plenty of shaded resting spots on the way up.