Explore Pre-Boo - 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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hiking
19 minutes ago

Very nice forested area following the Big Thompson River or Fern Creek the majority of the way to the lake. It's very easy and flat up until The Pool, at which point it begins getting steep. About halfway to Fern Falls, ice becomes more and more prominent on the trail. Microspikes are recommended to get to the Falls and beyond. From the falls to Fern Lake is primarily iced over on the trail. Gorgeous views once you reach the lake, which isn't iced over yet.

I made it there right around sunset, considering going to Odessa, but some hikers said it was completely frozen over and steep to get there, so I ended my hike at Fern Lake for this trip.

hiking
5 hours ago

great hike, but we would recommend yak trax or similar foot wear. current conditions are snow packed and icy on about half the trail. not impassable, but coming down around 11am was a bit slick without extra traction. overall, it's all it's cracked up to be.

This trail was gorgeous! Hiked it 10/21/18, spikes would have been helpful and probably safer, the trail was icy. For parking, either get there early on a weekend or take a shuttle if you can, there isn't much parking and it gets competitive.

Hiked this today, I'd definitely recommend microspikes. I ran into a lot of people having very bad times on the trail with just shoes. Personally, I turned around right after the waterfall - lots of steepness/ice and I was a bit anxious since snow and ice earlier on the trail had started melting. I did run into a few people who either got to Lake of Glass or all the way to Sky Pond, so it's definitely doable if you know what you're doing.

Glad I did this on a weekday. very crowded. however, the snow on the trail was slushy, so easy to get around. would recommend poles and/or spikes on a colder day. (we were 59 degrees)

great views and had a great time with my non climbing family.

hiking
13 hours ago

great little hike. the snow was so packed it was pretty treacherous! I slid down the ice more than a few times. still completely worth it! too bad there's no fishing in the lake :P. the trail was pretty packed with other hikers but that made it easier to take our time.

We turned around before we made it to the falls, so I’m taking it in faith it would have been worth it. We were about 3 miles in, about a mile past the Pool, when the trail turned to ice. Without traction or poles it wasn’t worth it. I’d call it fairly easy to the Pool but definitely moderate once you get past there.

hiking
1 day ago

Just finished the hike with my 4yo daughter! She loved it! She made it to Emerald Lake and then rode in the pack on the way back. I’ve made the Dream Lake hike prior but the extra distance to Emerald is absolutely worth it!!

on Emerald Lake Trail

hiking
1 day ago

We carried 2 babies in packs up to these lakes during heavy snow. There is steady elevation which may be difficult for people carrying kids or people who aren’t fully ready for the altitude, but the built in rewards of each lake made it a hike not to miss! It wasn’t too slippery even in the snow. It was definitely busy but don’t let that deter you!

My parents visiting from low altitude came along and they said the trail was definitely misleading being called “easy.” I agree... I think it is NOT an easy trail for inexperienced hikers or people brand new to altitude. It is probably best described as moderate.

Amazing hike! Trail was a little bit icy, we hiked mid October

hiking poles and spikes are a must this time of the year with frozen trail on about 90% of the way. though regret not having brought my ski gloves and pants as i was digging in over 2 ft of snow in some areas last week, but the views were well worth the challenge. good thing about hiking this time of the year is bears are asleep and you just need to hike up and slide all the way back down! ;) go easy and enjoy

We were celebrating our ten year anniversary and decided to try out this hike that was supposed to be fairly easy. I have a shoulder injury and a bad back so this hike felt slightly more moderate to me. But it was my first time hiking as well so I didn’t know what to expect. I left the mountain telling my husband it was one of the best days of my life. Next to the Grand Canyon it absolutely was the most magnificent view. Definitely hike all the way up if you can. The last part of the hike between dream lake and emerald lake was lots of stairs which was the hardest part. But even with the snow and ice it was not so bad with lots of breaks. The path is well maintained and as mentioned there’s lots of friends to meet along the way. If you can go when the snow is on the trees then do it. It truly was breathtaking and we didn’t have any problems with the wind at all so we must have gotten lucky. Happy hiking!

Today it was pretty icy at parts, but definitely worth it. We survived in regular tennis shoes with a couple slips here and there. The views were incredible, both of the mountains at large and all the lakes you come across. Highly recommend going early in the morning as the trail traffic was pretty high and only seemed more crowded as we were leaving.

Hiked this today. Most of the trail is covered in snow and ice— definitely need microspikes, especially for the last half mile. Past Lake of Glass the trail is hard to find. Snow is deep and the path beat in through the snow is not the actual trail and can be hard to follow. Weather was absolutely perfect!

This trail has amazing views of the mountains and multiple lakes along the way. It was a bit slippery but once your muscles get used to it, it isn't too bad.

Need spikes! 12 miles.. unable to make it to frozen lake bc of snow. Although the trail won’t ever close, it’s advisable to not take on frozen lake again until the summer. Tough sections for sure but amazing. Many water crossings and bridges :)

My wife and I made it all the way up with only our hiking boots. We both agree that going up with crampons would have been better. We had one slip/fall on an icy decline. Plus going up the water fall just below Lake of Glass was a little dicey, but a decent amount of people made it up and back down. We enjoyed trotting our snow pants up and put them on for the decent so we could “sled” down some of the steeper areas. Others were jealous. Overall we loved our trip. Walked over a frozen lake and Sky pond was just beautiful to celebrate our 5th anniversary.

Really beautiful and super fun, but definitely needed our crampons. Poles would have been helpful on occasion as well. I wouldn’t advise doing this one so late in the season unless you have the right gear for snow and ice.

Nice short stroll worth doing after you wear yourself out on the more challenging hikes in the area. Beautiful lake. The kids enjoyed running from marker to marker along the trail.

Not really a hike, but still worth the short walk around the lake for the amazing views. We got some great photos of three moose taking a stroll through the lake during our walk on June 27, 2018.

Fantastic hike with awesome views. Perfect length for a good workout, yet not to strenuous. Great for families!

Full on winter conditions up there now. Micro-spikes or other traction control would be advisable. The trail is well packed snow/ice. I didn't go further than Sky Pond due to the deep snow.

The trail was pretty icy and snowy, but our hiking boots worked just fine. If you have spikes or hiking poles I recommend bringing them along. The view at the top was definitely worth the climb. The water pump at the trailhead was closed down, so make sure to fill up waters beforehand.

Beautiful trail!! Couldn’t make it up the waterfall (covered in ice) without crampons but the views were still gorgeous.

Nice warmup for the other trails at this trailhead. Easy walk around the lake, quite busy.

hiking
3 days ago

Recent snow made the trail slushy and icy but the views were worth the challenge! Bring hiking poles and maybe splurge on some spikes and you’ll be fine!

As Galen noted below, heavy snow drifts up above Lake of Glass. Difficult to distinguish any trail in the snow. Found myself somewhat unprepared for this level of snow. I felt this trail was overrated, but I bet the experience is better in the summer.

Simple, Easy, trail for anyone to do!
Peaceful views on the lake.

Loved the winter wonderland walk today, everything was snow covered. I'd recommend Microspikes for the boots, but you can easily do it without.

hiking
8 days ago

Beautiful day on the trail on 10/14. Lots of fresh powder came in overnight. Some areas were quite icy, but it was very manageable if you come prepared and aren't hiking in sneakers. We saw less than 10 people total during our 3 hours out. Views were limited by the snow clouds, but it was still spectacular!

hiking
8 days ago

Striking views of shear rock faces, a true mountain lake

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