This is a great way to spend the day. Bikes are available for rent, but you’ll want to bring your own, as well as a bag lunch. There are trams which will drive you to and from the observatory, but riding a bike is the way to go! The wildlife is all around you, it is a wonderful experience. In total the loop is about 15 miles. The first half of the trail (the west section) from the parking lot to the observatory is nice because there are a bunch of alligators, turtles, birds, and lots of trees. The second half of the trail (the east section) from the observatory to the parking lot is great because there aren’t as many plants and your view is pretty much unobstructed. There are less people on that part of the trail, which is great; but, there is less wildlife too. No matter what you decide to do here, this is something everyone should experience.