I will always remember my first time hiking up to and standing at the notch, and looking out over the mountains. Truly amazing. The hike up to this point great but it gets better after you reach the top. I would say it is still worth it to hike up to this viewpoint and turn back if you cant do the full climb up Longs. Don't be scared of the boulder field just take your time and you can follow a cairn trail.

I have hiked RMNP for 20 years now. We have a vacation house in Estes Park, and I have hiked most of the Park by now. The Keyhole of Longs Peak has one of the best views in RMNP. Be prepared for a long hike. And do not attempt this hike if weather appears to get bad during the day. The majority of the hike is above treeline, and can be very dangerous if lightening exists. But be prepared for a view of a lifetime if the weather allows you to make it. This is not a hike for everyone. If you are athletic, this is a wonderful challenge. But the hike is strenuous, and probably not recommended if you are not in good shape.

I have never made the full hike/climb to Longs Peak but I have made it to the Keyhole Notch. It was glorious! One of the most memorable hikes of my many years. Started out early, early morning. Had a perfect breakfast in the boulderfields. Boulder hopped up to the Keyhole. I was happy, I was satisfied. It was wonderful. A nice sense of accomplishment.