Boost Platte River is a Pilates studio tucked into the Highland side of the river, and it's the kind of place that makes you actually want to show up at 6am. The reformer classes are small, the instructors know your name and your bad shoulder, and the energy is focused without being intense. This isn't a place to zone out. You'll leave sore in spots you forgot existed, but in a good way. Locals who split their week between strength training and something gentler on the joints end up here. It's a solid pick if you're chasing that toned, low-impact strength that running and lifting alone won't give you. Grab a coffee after at one of the spots nearby and make a morning of it.