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.

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Normally I'm ok with the poplar trails but this one is getting to be a joke. the lake is beautiful, great place to eat; until you get a mom and her children coming up while you're eating and proceed to strip And skinny dip right in front of us, not only was this incredibly uncomfortable for us who were sitting there first but girls proceeded to PEE right in the water!! squatting right in front of us eating our f*cking lunch!
I'm all for skinny dipping but have some respect for the people around you, please don't expose your 10 year old children to the entire lake and DO NOT pee in the water!

very quick and easy trail with an great lake at the top. do this and diamond lake in the same day if you have time - the Lost Lake trailhead starts where the road splits to lead to Diamond Lake. get there early bc it gets very busy and hard to park.

2 days ago

Did this hike on a Thursday morning. Parking was tight but found a spot around 1130. Started the hike, took a detour to the left and found some beautiful waterfalls. Had to backtrack to get to the main trail. Rocky in parts. A bit of an incline at the end, but worth the view at the lake at the end. Not as narrow on the trail as other hikes. Quite a few bugs along the way but none at the lake which was a great place to grab a bite and enjoy the view.

Walk the path by the river, it’s beautiful and is not nearly as rocky. We walked the river path up and it was gorgeous!! It brings you out at a nice place to lay out in the rocks and then you continue on to the main tail to the lake.

The trail is beautiful and not too difficult. But I have to agree with other commenters that it’s very busy on weekends and the amount of loose rock is tricky. I still recommend it though because the lake and the waterfalls are relaxing. Also, parking at the Nederland park n ride and getting the shuttle is the way to go; it’s there every 15 minutes on the weekends and you don’t have to deal with the scarce parking at the trail head.

11 days ago

Nice well marked trail that takes you up to Lost Lake, a clear, shallow mountain lake at about 10,000 feet elevation. It’s a bit tough on the way up, but a fun hike down. Nice Mountain View’s and shallow rocky rivers with a couple large waterfalls.

12 days ago

Nice trail. Wide trail, good one to take the kids. Go early, very sunny, no shade. First mile or so is a gentle up hill. Beautiful rock formations! Close to Denver. Coyote trail is not clearly marked on the return, bring a map along.

Fairly easy hike. Good trail improvements along the way. Definitely a lot of wildflowers, waterfalls, and scenery. The lake at the top is worth every step. We would definitely come back for a picnic lunch on a nicer day. The clouds started rolling in once we made it to the lake and we had to cut the chill time short. I definitely recommend blazing your own trail at the bottom to see a few waterfalls that aren't as easy to get to or see from the main trail. As other reviews have stated stay to the left.

I love this hike, great views, like waterfalls and rolling rivers. go early or go late

Great hike! A bit rocky throughout. We had a little trouble knowing where to go to go around the lake. It was busy and parking was tight. Would go again!

14 days ago

I think this is my favorite hike of the summer. Stunning upper lake, it was empty when we were there on a Thursday afternoon. Lots of wildlife, and great weather.

Easy hike, with great views. Mostly in the sticks, until the end. Highly recommend

on Silver Creek Trail

16 days ago

gorgeous views, flowers and fun trail to run with the pups

The trails are well marked and beautiful scenery. This is one of my favorite trails to go on. However, I would suggest to get there early as the parking lot gets full & it’s a very popular hike.

Great hike. Beautiful views and waterfalls. Trail is stupid busy. Do yourself a favor and park in Ned at the Park n Ride and the the shuttle or you're going Yo end up adding an extra mile or two to the hike. Would be 5 stars except for the parking.

Love this trail. The rock formations are beautiful.

We got to the parking area around 4:00 on a Saturday afternoon, and were able to find a parking spot as many people were done and leaving. The actual trailhead was about a mile in, we realized that once we were walking on a driveable road and saw many high clearance vehicles parked. The trail was rocky, but not as bad as I was expecting after reading other reviews. Multiple groups on their way down were so kind in letting us know there was an active bear up at the lake - we never saw it, but apparently it had been rummaging through some campsites!
I wish we would have taken time to veer left of the trail to enjoy the river more, and when I do it again I will make time to walk all the way around the lake.

This is a great trail that offers a little bit of everything- wild flowers, roaring creek, water falls, clear mountain lake, snow capped peaks. It was also fairly mild in elevation. Best part is taking the free shuttle right to the trail head and back from Nederland. Offered every 20min during summer weekends.

This was our favorite hike of our trip! The waterfalls are amazing, but you have to venture off the path a bit to see them in their best form. Listen for loud rushing water to find a spectacular 3 fall view! Many other waterfall sightings along the trail and the lake is gorgeous, but small.

27 days ago

good challenge for 60+ crowd. mountain lion seen high on cliffs abt 10.45am. lots of flower and fauna variety in bloom. late june. got startled by a biker from behind. people left doggie poo bags..we saw 2 just dropped at trailside. #leavenotrace

27 days ago

This is the only trail I’ve repeated in Colorado and I’ve hiked it 4 times now. It’s easily my favorite because of how it varies from the woods (lots of shade) to waterfalls and rewards you with a super chill lake at the end. A great hike to take out of towners on too. Definitely veer off to the left for the cascade. The gradual incline on loose rock does suck but does not take a way from the overall experience, if anything it’s the parking but there’s always the shuttle.

the lake and water falls were gorgeous. However I was not prepared for the loose rock on the entire trail with a constant incline. I was having to always look down and watch my footing which took a lot away from the hike.

28 days ago

Great hike. Nice change of scenery from typical Boulder views. Trees provide shade for much of trail. Views at the lake are great. Definitely worth the trip from Boulder if looking for a day trip hike.

28 days ago

Watch your step on the loose rock at the beginning of the trail. Beautiful water views along the trail, wildflowers, and Lost Lake. We went on a Saturday so parking was full but there is a shuttle from down in Nederland to the trailhead should you want to take it. Otherwise, it’s an easy walk along a dirt road.

Nice hike, steep and rocks are a little slippery, but really not bad. Gorgeous views and quiet at the lake. I don’t know who lost it, but we found it

Great hike. Pretty easy but tons to see. Didn’t realize there were a few waterfalls as you hiked along the stream. Great place for a picnic at the lake. Plan to come back and snowshoe this one.

Definitely take the time to veer left towards the river and explore along the waterfalls. It’s beautiful.

1 month ago

Hiked to Surprise Lake yesterday with a friend and our two dogs. It was her first backpacking trip, we camped at Surprise Lake and day hiked to Upper Cataract. We got a little rained on but the temperatures were perfect. Because we were hiking in on a Sunday, most folks were headed out and we basically had both lakes to ourselves. No snow at either lake, the trail was steep in sections but the trees kept it shaded and the views were worth it in the end!

Awesome camping area 2 miles from parking. Get there early as non 4wheel drive parking is limited. Easy trail to navigate if you pay attention. Several waterfalls on the way up if you open your ears. 9 campsites at the lake that are first come first serve basis. All are nice but some better than others. There are several cool trails above the lake that you can explore old mines and get an awesome view of devils thumb. Pack your fly pole as you can slay fish up there in the morning or evening. Permit not required as you are not in Indian Peaks Wilderness

short and sweet, if you follow the river instead of the main trail, you'll be treated to a old log cabin and beautiful waterfalls. The main trail is a twisted ankle waiting to happen. The lake is pretty but fairly non descript. Filled with little Brook trout.

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