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so beautiful at the top. highly highly recommend. get there as early as possible for parking.

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.

nice quick hike up to the lake, not too challenging. awesome views at the top with a second lake if you continue which we didn't have time to do. the road up to the trailhead is very rocky so be careful driving. highly recommend.

hiking
17 hours 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.

on Mallory Cave

hiking
18 hours ago

Very nice!

hiking
2 days ago

Couldn't have asked for a better hike today. The weather was beautiful, we had to park at the Brainard Lake Lot after getting there at 9am. It wasn't nearly as crowded as I had expected
Everyone we did come across was super nice and very quiet. If someone can tell me of a place that is this easy of a hike and even more beautiful please let me know. I'm not sure there is a place.

Great trail! Make sure you do the sleepy lion trail up. When you hit Hull ranch do not go that way go to the right where you will find the summit of the trail and a gorgeous view of the lake. We almost missed it and went the Hull route. There’s not a lot of shade on the last 2 miles back so be prepared for that.

Nice hike, great views at the top!!

beautiful, moderate hike, very crowded on the weekends. recommend arriving at trailhead before 730am. diamond lake has plenty of space for the masses but is busy by 930am. recommended!

hiking
4 days ago

Great hike! Definitely not too difficult... fairly trafficked on the weekend as of you approach the Lake. Lots of fun waterfalls and little features along the way.... If you’re doing this on a weekend definitely make it to the trail head by 7-7:15AM or you’ll be in a jam to find parking! We made it at 8 and parked about a half mile down!

hiking
4 days ago

Nice, short trail for a quick nature getaway. It is quite steep if you enter from Settler’s Park, much more than expected. There are beautiful views of Boulder at the top. Bring lots of water and sunscreen as there’s not much shade.

hiking
4 days ago

This hike is great for a very easy hike with some awesome views. If you enter from Eldorado Springs you'll have to pay $8 to park your car, but you really see where that money goes while walk the well manicured trail with retaining walls on the side. If you park at the other end of the trail it's free (considered Boulder Open Space). The first half of the hike is very scenic, while the rest is pretty open and not as many views. I would suggest branching off to Spring Brook North Trail or Rattlesnake Gultch.

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.

on Lake Isabelle Trail

hiking
4 days ago

Beautiful BUT: The Lake is now drained. There's only little water left. no more waterfall, and compared to a month ago most of the wildflowers are now gone.
Still a nice walk/hike, would suggest going later in the day as it gets crowded in the morning.

I liked that this trail had variety of sceneries. Many shaded area as well as some meadows and rocky terrains. Great for dogs since there is a creek running by, and the lakes to get to. Wild flowers are beautiful in August. I saw a coyote (I think) and moose!

hiking
5 days ago

Ideal if you have dogs and can share the trail with a few bikers. Was looking for a loop for my two pups and I, somewhere not too steep or rocky with some shady spots. Arrived at 10:30 and it was perfect. There’s also a bathroom and trash can maybe 1/3 of the way in (clockwise) if you fork off to Waterhole that I appreciated very much.

This hike starts with a gradual incline for about 1.5 miles through the spruce and fir forest. Once you break out of the trees at timberline, the rest of this hike (4 miles or so) is exposed high tundra hiking. IF YOU HAVE ARE BRINGING A DOG...there is no water at all on this trail. Just FYI. After treeline you get your first big views of north Arapahoe peak and Apache peak. You are also able to see the lakes down on your right associates with the Boulder watershed. The hike begins to climb from this point up the tundra with a few different switchback sections. You then end up on the south side of the ridge where you have great views of eldora ski area, Mt Evans, and all the mountains on the continental divide looking towards winter park. We could also see Grays and Torrey’s, and Bierstadt, and Pikes peak way off in the southern distance. You head along the ridge here for a couple miles at a pretty even grade until you meet up with 4th of July trail. At this point you can see the peak to your right which is the way to south arapahoe peak. This is why the trail has a hard rating in my opinion. It’s a steep rock scramble up to the top but well worth it.

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.

Scenic and forested. The last 3/4 of the hike got hard and had me wondering if I was ever going to make it, but it was worth the effort to get to beautiful mountain lakes.

Great little hike. Got there at 830 ish and had to park further away.

Beautiful stream and gorgeous lake

Did this hike with wife and kids (2 and 5), had hiking child carriers.

Beautiful views and not over challenging for someone fairly new to hiking. I felt like I accomplished something without killing myself.

Great distance and elevation for beginners who want to get some incline!

I’m honestly hesitant to give this a review because of how good it is. This is a hidden gem (from tourism) and perfect alternative to the emerald lake, dream lake, lily lake, etc. It’s also not only easy, but a great duration. I suggest an evening hike for the sunset at Lake Isabelle, absolutely incredible. Check weather though for any afternoon hikes, always.

hiking
8 days ago

This trail was gorgeous but we went on a Wednesday and it was extremely busy. It was a pretty easy trail for an amazing view.

backpacking
9 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.

Best hike in Colorado! Beautiful views and an easy hike without a lot of elevation gain

Cool hike and views from the upper lake. Many, many people due to the parking lot being so big. I would rate the TH to the two lakes has a moderate hike and if you choose to go up that last .5 mile is hard. There are two trails up, the one in view from standing between the lakes is a scramble up and then down 150 ft to the lake. The trail to the east is steep too but drops you at the lake shore.

overall, nice hike with tons of people.

Beautiful. Well-marked hike.

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.

This was a nice, moderate hike. We had to park a ways up the road because there were so many cars.
We saw plenty of people on the trail, but many were backpacking, so the parking situation made it seem worse than it really was. The first mile or so is shared with the trail to Arapaho Glacier and shortly after the split is a lovely waterfall. We hiked up the waterfall area near the lake as well, and I'm bummed because we didn't realize there were more lakes! We didn't explore as much as we should have.

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