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Great trail! Arrived at 8am on a Saturday and the lot was less than half full. Mostly full by the time we left around 11am. The reservoir was awesome. Great hike with the dog. I’ll be back to trail run!

Great hike that only takes a couple hours to complete. Not too challenging for beginners and, as others have said, the view is well worth the climb.

I thought this was an alright hike. I’ve been earlier in the summer (June) and it was a beautiful walk in though we didn’t make it to the lake due to snow. Beautiful snow capped mountains and roaring waterfalls. Went again mid August and wasn’t nearly as beautiful walk in and the lake was nice but I’ve seen much more beautiful ones in Colorado. Probably best times are June and July and then fall which I assume will start in September/October.

Do you like rolling your ankle? Do you like busy trails? This is the trail for you then. The trail is clearly visible until the scramble to the top on the near peak, I stayed on the northwest side and found a route suitable for me without any issues. The worst part of the trail, other then being really rocky, was a stretch right after the washed out area. Lots of incline there. For me slow and steady wins the race. Great views from the top. I wanted to go to the second peak but I could see storms moving in so I left.

Great trail, rained on us but other than that it was awesome!!!

This was a great hike with breathtaking views... My partner and I started around 7:45 AM and reached the summit just after 9:30. We spent about an hour at the peaks before heading back down, and we reached our car around 12:00. We traveled at a brisk pace with a few stops to hydrate and catch our breaths. The air is thin and dry, so take your time, and (as always) bring more water than you think you’ll need. As many of the previous reviewers have stated, I would rank this hike as more moderately-difficult than hard. The trail has a slight incline most of the way with a few steep portions in between. It is rocky/jagged towards the end, at the summit, and on the way back down, so wear footwear that have protective soles lest you hurt your feet. The majority of the hike is in the forest- very shady and peaceful... Overall, this hike is a great choice for inexperienced hikers. Very doable, and the views will definitely not disappoint!

Beautiful views! The trail along the westside of the loop is in bad shape from washout and fallen trees. It was very difficult to climb. We lost the trail halfway up and found our way to a different rock outcrop. Views were still great.

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.

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.

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
8 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!

A great hike! 4 stars instead of 5 because the first ~2.8 miles of the route got a little boring with all the trees (which were pretty! Just the same view for a while), but the view at the top was gorgeous. If you’re comfortable with it, definitely climb up the rock peaks at the top to get an even better view.

It took us just under 2 hours to get to the top, and about 50 minutes to get back down. However, we normally walk fast, and passed many people both ways. There were some pretty steep parts, especially halfway through, but nothing too difficult or unsafe. If you’re regularly active and in good shape, you’ll find this trail to be moderate and not “hard.”

hiking
8 days ago

this was beautiful at the top but it's definitely HARD

This ended up being one of my favorite hikes of the trip. It was definitely a challenge for me and my friend, two Midwesterners who have never climbed a mountain or generally even faced high altitudes before. The elevation gain and rocky terrain are brutal at times but definitely manageable, I think having hiking poles would definitely have made it easier. It took us 3.5 hours to get to the top, going at a reasonable pace and making frequent stops to let our lungs adjust to the altitude. The views at the top are astounding, especially if you scramble up to one of the peaks to get the full panoramic view, but the first 3 miles of the hike itself isn't terribly exciting. You are surrounded by beautiful huge trees for most of it though, so it was peaceful, and when we began our hike around 8:30 AM we saw several elk right off the trail. All an all I would definitely recommend this hike if you're looking to summit a mountain but are an inexperienced hiker.

hiking
10 days ago

Beautiful hike! There were meadows and thick forests! Only downside was there was no water, only some dried stream beds. We took the crosier rainbow trailhead that is 8.0 miles from US 34; very steep and wonderfully challenging. Would say the rainbow trail is difficult rather than moderate.

The hike up isn’t the most interesting, but the view at the top is definitely one of the best in the park. The trail gets pretty steep at a bunch of points, and the altitude can really get you if you are not used to it, but if you can, hike Twin Sisters.

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

Excellent hike! We did this on August 7, 2018.

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.

hiking
15 days ago

Did this hike on the afternoon of 8/1 after flying in to Denver in the morning. No altitude issues despite the lack of acclimatization. Much less crowded than the Bear Lake area; no difficulty in finding parking across from Lily Lake and up the road a bit, and only a few people on the trail. The hike itself is mostly fairly easy switchbacks through the woods. Lots of pikas and a few marmots after getting above the treeline. The views at the top weren't amazing because it had gotten pretty overcast by then, but the summit certainly had a nice view of Longs & the surrounding valleys and would probably have been marvelous earlier in the day. All in all, a good hike but not one of our favorites in RMNP.

It was a great day with my husband. This was our first hike and it was fun. It was too bad for heat wise. It rained and it was beautiful.

Views are excellent. Don’t stop at the lower diamond lake. Keep hiking and you will find middle diamond lake and upper diamond lake. Beautiful!

Don’t make the dummy mistake that I did and pay an entrance fee! Half the “trail” is a back dirt road, with little to no shoulder to walk on, the other half is trail, with lots of smaller trails that allow you to wander. Worth a visit, definitely a decent distance walk. Lots of prairie dogs and wild flowers along the way!

So beautiful at the summit. So worth it!

This trail is dope. Beautiful views, waterfalls, it’s fun to hike, and there are great places to take photos for you IG

hiking
17 days ago

Hiked on a Saturday afternoon. It was very crowded with people and dogs. Beautiful wildflowers and a waterfall. We saw a moose. Narrow dirt road up to the trailhead with minimal parking.

Wonderfully peaceful and scenic hike. My friends and I saw not a sole on a beautiful day. Great views on top!

hiking
18 days ago

Did this hike on Wednesday, 7/25. Parked at lower trailhead - across the street from Lily Lake - at 7am. It was me and one other car in lot but there were 5 cars parked at the upper trailhead. The Hike was great, a steady incline, and the summit was cool. Did a short rock scramble up both peaks. Only saw ~8 people on ascent but lots on way back down.

From GAIA GPS: 7.60 miles, 3:53 hours (13 minutes of stoppage time), and 2384' ascent.

Beautiful waterfalls, not much shade and very hot though. Saw a little black snake near the water.

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