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

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There are rattlesnakes so be careful, but don't miss out! This is a great workout for people looking to improve beginner hiking skills. Lots of great views, really cool area for rock climbers, and a little history hidden on the trail.

I would have liked to pick up the pace to get a better workout in, but the trail was pretty crowded (granted, it was midday on a Saturday.) Overall it was a nice trail, great views at the top, and fun to watch climbers on the opposite rock face. My friends and I maintained regular conversation without much huffing and puffing and there were plenty of kids on the trail, so I’m not sure if deserves a “moderate” categorization, but it was a great outing for sure. Saw some cool birds, too!

Lovely nature walk close to Denver. The view at the top is legit and would work well to satisfy the average out of town guest. No snow on the trail today.

got there at 10 a.m. yesterday only a couple of cars in the lot. though there's not a lot of spaces. well maintained trail. nice steady incline for first couple of miles. the view at the top was beautiful! bring layers! started off needing 2 jackets a hat and gloves went down to just day clothes as we got going.

Easy and fun hike with the kid and the dogs.

hiking
10 days ago

East trailhead Castle Trail up long switchbacks to Walker Ruins & Summer White Hse (great views west!) return Down Turkey Trot Trail north facing sections icey slush. 8am start, not too crowded mid week.Windy, layer up, gloves & ears. CMCDan,Nov 2 ,2018.

Hiked this my first day in Denver so getting used to the elevation was a little rough for me. But overall I thought it was a great hike! The overlook was incredibly beautiful and while the trail was a bit rocky in places, it was mostly flat and wide with a slight constant incline to the top. I am not an avid hiker and a bit out of shape so I thought it was the perfect combination of a challenge, scenery, and length.

Awesome little trail with a nice overlook. some snow was melting from a dusting earlier in the week, so the trail was a bit muddy, but otherwise good.

I had a few free hours in the afternoon and live about 30 minutes away from here, so I thought I'd give it a go.

Nice trail. Well maintained. Great scenery. Gentle elevation gain.

Certainly not one of Colorado's greatest hikes, but a good couple hour loop.

It can be a little crowded, and parking can be hard to come by.

Great views and very rewarding. Highly trafficked, and there was some shattered glass on the trail that we picked up to prevent injuries to pups on the trail. I also wouldn't rate this as hard, more of a moderate difficulty. The elevation gain is very gradual.

Hiked 10/29/2018 Castle Trail up to the Presidents Summer House. Beautiful views. Not too busy. Perfect weather and views. Easy to moderate. Great trail while acclimating to the altitude.

low traffic, beautiful pines surround you, very peaceful, great for anyone

Always love this trail. ..

Its a little slushy and slippery out there lately, best if you have high boots and yak tracks. As always, a lovely hike!

Steep uphill climb for the first half if you're coming form Morrison, but lots of switchbacks makes it easy. Once you're at the top, you'll get an awesome view of Denver and Red Rocks. We also saw tons of wildlife. Lots of options for castle and trail exploring, too. Really good place to take someone new to hiking or visiting the area because you can stay up there for hours or come down if they're not feelin' it. Get ice cream in Morrison after!

My husband and I, along with our dog, Breezy, did this hike this morning. We arrived at the first parking lot at 8 am. We didn't think we could make it up the road to the TH so we decided to just hike it. It was a pretty good workout on the way up and I was really thankful for my spikes. Once above the tree line, I was glad I had lots of layers on. The wind almost blew us over at times. It was gorgeous up there! We went to all 3 lakes and only the highest one was frozen over. Beautiful views and not too much snow. I would love to come back in the summer to do this hike again. My Fitbit clocked 7miles RT including the hike up the road to the TH.

WOW! This was a GREAT hike! Super impressed.

PROS: Bathroom - YES... very nice! Just down at a lower parking lot than the higher lots. But still nice, clean and accessible. There are pit toilets, but they are inside a nice room and have bathroom stalls.

TERRAIN: ROCKY, as previously mentioned by others. My dog (a Dachshund) could handle the terrain, but it was sharp and big rocks in alot of places. When you get to the Crags Hotel site, it smoothes out temporarily. But, it stays "craggly" for awhile.

FEATURES: The views were amazing! Continental Divide, general views of the mountains! One of the prettier hikes that I've been to in my years of hiking for sure! The Crags Hotel was AWESOME to see the ruins... it had a fireplace, it had the fountain and some of the hotel foundation. Super cool! I love history, so it was an amazing thing to see. The railroad tracks and tunnel was also awesome to see too. The train came within minutes of us leaving the area.

BOTTOM LINE: Great bathrooms, steep hike up (def moderate or slightly higher) Wear layers! The weather changed alot up on the way up the hill... keep a lookout for snakes, although I didn't see any.
DEFINITELY get there early to get a parking space (we got there at 8:30am) and it was great!

Beautiful views

hiking
18 days ago

This was a good hike. Pretty steep right from the get go. We took a lot of breaks. Good views along the way. Not overly crowded on the trail, but parking was pretty hard to come by on a beautiful Sunday afternoon. Coming back up from the river was the hardest part for me. All in all, 4 hours well spent.

trail running
18 days ago

This is a great short run. The roaring creek at the bottom added to the experience. The switchbacks are long and climb ever so higher for the first 1.75 miles. The views are stunning. I arrived at 8:30am and only met 3 hikers going up and another 3 or 4 on my way back down. There were lots of rock climbers preparing for their climb as I left the park. Knocked this one out in 53 minutes.

hiking
21 days ago

This was my first hike after moving from the midwest. It was a nice trail, took the dog with us, got my heart rate going right off the bat and we took it nice and slow. Probably not the best first hike for someone who hasn't hiked much, we didn't make it all the way to the end, but we will next time!

Well marked, well maintained trails. Some nice views and interesting ruins. A lot of side trails near the top, so you can make it a bit longer. Not too much elevation gain; kind of a mild trail. Not crowded this morning (Tuesday).

i truly loves this hike. we went the day after a concert and easily got to the water. it got chilly as the sun went down so prepare yourself with a jacket. overall, easy hike to a gorgeous view.

Beautiful hike, lots of scenery and mountains all around you covered in snow. Parking lot (due to road closure) is 3.5 miles away from the lake Isabelle trailhead, entire hike ends up being 12.5 miles. Lake Isabelle is completely frozen over and looks immaculate. Expect a 5 and half hour hike. I would arrive early to get the best views and temperatures.

This was a great hike! There are three lakes at the top, the third is a bit further up & is frozen over. The trail is completely snow covered and icy in some patches but passable the whole way. Spikes would be nice if you like to use them, but not necessary. It was a little windy at the third lake and we were occasionally stepping into knee deep snow. Great hike with the doggies. We saw a few other groups of people along the way. Absolutely gorgeous!

**there is a separate account for “winter” trail, but this is the first account most people go to** Beautiful hike the entire way. As someone else mentioned the road to Brainard Lake is closed. From parking and back we clocked a round trip of 12 miles to get to Lake Isabelle and back to parking lot. The trail had nice packed snow 90% of the way, the last part before the lake is a little slushy and muddy being exposed to sun which can cause it to be a little slick, so careful if you have some limitations. The lake was completely frozen on 10/20.

hiking
24 days ago

Amazing view!

Took Jacob and Garrett. Beautiful views!

Just a heads up the road to Brainard Lake is closed for the season as of 10/15 so you have to park at the winter lot and hike the 2.5ish miles to the trailhead.

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