In lieu of a hike, try this scenic drive! The Scenic Byway to Mount Blue Sky climbs over 7,000 feet in its 28-mile length, reaching an altitude of 14,130' feet. Idaho Springs serves as the starting point to the byway, which is the highest paved road in North America.
Many places will let you rent equipment for outdoor summer activities like paddle boarding, kayaking, tubing, etc. If you are looking for just a hike, All Trails is a great tool to find the perfect hike anywhere. And Rocky Mountain National Park is only a couple hours away!