We walked about two miles total, mostly on the elevated boardwalks in the Park. It started at dusk, which was around 7:30 pm when we went, and lasted a little over an hour and a half. The Owl Prowl is Ranger-guided and happens after the park closes, which definitely helped us all to feel just a little special. We signed up online and got a confirmation email so we were set.
The Owl Prowl was a free event but we had to sign up because they only had about 20 spots available. The park also has a campground (good luck with this during the warmer months) as well as fishing and numerous educational opportunities. Pretty cool if you are into that kind of thing. I have not done this trail myself but have read of adventurous individuals doing a kayak camping trip over the course of a few days here. The Blue Trail is a 50-mile kayak/trail that runs from downtown Columbia to the park. The Congaree River Blue Trail is another way for those who like to paddle to explore the area. We saw tons of snakes and got to experience the park in a pretty fantastic way. I did this with my kids and our own kayak one spring and it was super cool. The park also has a canoe trail where you can bring your own kayak or canoe and paddle (depending on water levels) or rent a kayak/canoe or go on a guided tour with Carolina Outdoor Adventures.
Canoeing and Kayaking at Congaree National Park