According to AllTrails, this is about a 9.6 mile hike and a 3,280 foot elevation gain. While you start to feel the elevation a little at the top of the peak, it's not bad at all and there are no real steep sections other than the end. It's just a gradual uphill grind. So enough of that, let's get to the pictures!
As soon as you leave Beaver Lake, you are on an uphill stretch with quite a few trees on both sides of you. There isn't much of a few for a while but then as you get up higher, there are a few overlooks of various lakes below you. I really like the picture below since you can see all of the mountains and one lake up close and one in the distance.
After you get above 11,000 or so, your views change quite a bit from tress to more of an open mountain feeling. It got a little windy up here but it wasn't too bad. Here is another picture of the lake as you look down the mountain range. It also got my little marmot friend in the picture doing some sun bathing.
The next two pictures show the top of Hallet Peak. The trail itself is called Flattop Mtn. Trail and the section to the right is a fairly long flat section before you start your final uphill climb.
Then we got a few pics at the top which was around 12,713 feet.
Overall I really enjoyed the hike. It had some good views of both lakes and the mountains. It'd be a good hike to get you used to higher elevation without having very steep uphill climbs.