The trails of this park are either a hikers dream or nightmare. Exposed roots, large rocks, and elevation changes are common. Good potential for a twisted ankle. I would not advise bringing small children or inexperienced hikers as they will likely not have a very good time. Although there is the Bensen Lake trail that is a wooden boardwalk that rings Bensen Lake. This trail connects to the picnic grounds that is a great place for a day outing. You can drive almost right up to it and there is a vault toilet. The lake itself is fairly small. I don't know if it is worth the trouble of bringing a canoe or kayak unless you plan on taking some trout out of the lake.

9/14/2020 - 9/16/2020
I camped in site 19 which is only .5 miles from the parking lot. Flat road and wooden boardwalk sounds good until you get to the trail that leads from the boardwalk up a hill to the campsite. According to my GPS this is 138 feet of elevation. And remember what I said about the large rocks and exposed roots? This trail doesn't disappoint. Let's put it this way, you will not feel guilty for playing hooky from the gym during your stay here. This site is also not level. It has a pitch of about 5 degrees which doesn't sound like much until you attempt to balance your cookpot on your backpacking stove. There also isn't a bear box which I am told the other campsites do have. My guess is that nobody wanted to carry one up that hill.  You do get a field latrine and decent view of the sky. There is a rocky outcrop in the middle of the site that is a perfect platform to lay down on and stargaze. There is a couple of bushcraft style benches and a stool near the fire ring. Good luck finding dry deadfall for firewood around the campsite. If you want a fire you are going to have to bring your own up the hill. 

I decided to take a look at the neighboring campsite 18 thinking that this must be a cakewalk compared to 19.  It wasn't on a hill but the trail resembled something like what Indiana Jones had to contend with getting into the Temple of Doom. I didn't even get all the way to it. Although I didn't come across any signs that said, "I'd Turn Back If I were You" - I turned back partially because I already had a long hike planned for that morning, and this isn't the trail I wanted to have to run down while being chased by a huge boulder. 

All this toil has its payoff though. There are some great views. The cascades on the Manitou river, the overlooks, and the Matt Willis trial that looks like you are going to see Robin Hood come walking down the trial at any time. This trail seems like it hasn't been touched by humans in a while. There were lots of trees fallen over the trail and there are parts where it is difficult to tell where the trail goes. 
Would I come back to this park? Absolutely. Will I reserve campsite 19 again? I think I will pass on that, and site 18 for that matter - wherever it is.

Note - there is no cell service in the park, You do get it when you get out to the park entrance on county road 7. There is a hand pump for water near the entrance. Otherwise you will need to filter or boil the water you find in the park. The map shows springs that flow towards the Manitou river, although they are not marked as such.