Explore To do! - view hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

To do! Map
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hiking
13 hours ago

I hiked this trail for the first time on Wednesday around 4:00pm and it was not at all busy we only saw about 10 other hikers. This is a tough trail in the beginning, lots of steep switchbacks. But, once you get past that part it’s a lot easier and oh so worth it for the views. It’s a gorgeous trail and it was very clean. It can be hard on the knees coming down but we took our time and I would do this trail more often if I lived closer.
My step counter was 11993, 4.4miles, and 111floors.

hiking
3 days ago

Tough trail for beginners. Definately a good workout. This is also a very popular trail.

Used to be my favorite trail—beautiful and solid workout. Nowadays it suffers from far too many visitors on it’s narrow trail and too many off-leash dogs and owners who don’t pick up their dog’s poop.

hiking
8 days ago

Beautiful but busy, go early

Love to take guests on this trail!!

Loved this trail! it is a bit challenging and technical but great one. Lots of people with dogs only I worry a bit for small ones but they seem happy. moderate crowded.

Great climb, but lots of traffic

Awesome hike. Not overwhelming hard but tough for moderately in-shape folks. Mostly climbing steps. Gorgeous view at the top.

hiking
10 days ago

Excellent trail that is to be experienced in the fall. We were a couple weeks late to do this. However, the snow in the path made it a bit difficult to traverse. Took us 3 hours from car to car including the breaks and photography. Would highly recommend this trail during the fall season.

hiking
11 days ago

Trail was not super tough. I would highly recommend using spikes. I did not and was fine. Just watch where you’re stepping. Though my wife did use spikes and said she felt much more comfortable coming back down. There was an incident with a dislocated hip. Not sure if it was from a fall or whatnot, but it is better to be safe than sorry. As you get further up trail you run between dry land/rocks and icy areas. The end is def worth the hike up. Just be careful!!!

hiking
11 days ago

Awesome hike. Leg burner for sure!

hiking
12 days ago

Beautiful trail. well maintained and not much traffic on the trail today because of the cold may be. But the parking lot is full as there are lot of trails starting at the same place. I have parked on a close by street. It snowed a bit while I was there and it was beautiful

sick trail

large crowds, leg burner, beautiful trail and views

hiking
13 days ago

not your average trail. stairway to heaven. seemed longer than 3 miles. arch was stunning, view of boulder and denver as well. very crowded. leg burner. loved it. bring toilet paper, i found free parking away from main lot.

hiking
14 days ago

We went off season which was October 26th. At this time there is no having to use the shuttle to get up. You need to pay at the entry of the park which is $10 per car. We went about 930a and now issues finding parking. When we got done with the hike around 1p the parking lot was pretty full. We wanted to do an easy hike as my friend just flew in the day before from Minnesota. We were planning to do the easy trail called Maroon Bells scenic trail. This was closed so other only option from that trail was Crater Lake. This was a little more challenging then we were expecting. But it was a great. Lots of rocks and boulders to climb over. There was some areas with snow and ice but not too bad. But all worth as once we got the lake it was huge (though the water was low). Enough room to go by ourselves to have a snack without being next to anyone. Would come back to do this in another season to see all the aspens.

hiking
14 days ago

My favorite trail in Boulder. I do it several times a year in all different seasons. Traction is definitely a good idea in winter. Can be crowded. It is steep. But I still love it. On clear days, one can see out the expansive eastern plains, and the city of Denver in the distance appears very small and isolated.

Elevation change closer to 1,500 ft. Not out and back; 2 ways to the summit.

I hiked this trail a couple weeks ago on a Sunday. It was my first ever hike. Was told by many I picked a tough one for my first ever hike. It was very tough for me. Very steep. I stopped quite a bit on the way up. Sometimes to rest others for the many scenic overlooks. Just about everyone was very friendly. It was quite crowded. Some runners too. The top was amazing with great views. There was a couple people on the top of the thumb too.

Greta trail, I hike on average 10-15 miles per week and this was still pretty difficult for me. I stopped a lot but it was so worth it at the top! I went in December and the weather was perfect. Very traveled on the weekends, so best to go early.

Pretty awesome hike close to home.

Really awesome trail that has a waterfall and many connecting trails BUT, as simple and short as it is you can get lost pretty easy so be careful. Saw one snake but not too crazy of wildlife beyond that. CLImBerS will love this place as it has many tie off points for ropes or you can free climb and boulder a bit. Descent amount of people but everyone was pretty chill and it was a good vibe all around

Trail was great for a nice afternoon stroll. Just enough to get the blood pumping. Not much of a waterfall right now; but hoping to do it in the spring again.

Did this trail when the scenic loop was closed. It was steep until the end and snowy and rocky in spots. But for those of us in our party who made it, it’s was great.
The lake was not very full, but the scenery was great and the local birds are friendly!
For the part of our party who couldn’t make it to the top there was an opening with a amazing Mountain View about .75 miles in. A great place to call good enough if u have to.

Nice little hike. I would call this easy rather than moderate. A couple of sections to get your lungs working, but easy otherwise. Lots of people and pets around 11:00, but until then, we virtually had the place to ourselves, even on a Saturday. Not too far from town, so definitely one I'd do again!

hiking
19 days ago

This was a lovely hike, quite the ass kicker at the very end. Good workout and a wonderful view at the end.

on Tom's Thumb Trail

hiking
19 days ago

I tend to enjoy hikes a bit more when there is water involved. This is definitely a fun hike and amazing once you get to the falls! I must say I am guilty for packing a nice snack and enjoying it by the water!

Great hike to start the day, I started at 5:00am, no problems finding parking

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