For those interested in climbing, Chasm Lake trail is the must-do hike of Rocky Mountain National Park lakes, though the trail actually starts outside of the park entrance. This hike is one of the hardest on this list, clocking in at just under 9.5 miles.
That said, it provides an amazing view of Chasm Lake underneath the infamous ‘Diamond’, Long Peak’s prominent 900 foot-tall, east face and one of America’s most iconic walls in the alpine. The last section of the trail can be a bit tricky to find and requires some scrambling to get up to the lake, but it is well worth it.
Get up early to watch the sunrise hit the Diamond for an amazing adventure.