Oh, it's very easy!
Just take the Blue launch. It runs 6:45am - 10pm every day. There are generally 2 boats running at a time, 1 clockwise and 1 counterclockwise. The boats go CR/WL/FW (any order). The whole loop itself is about 15 minutes.
It's great fun. During our last stay, we'd just take the boat for fun! Trails End is great. If you have time, be sure to walk behind it to see the horses and farm animals. If you've a little one under 80#'s, s/he can go on a pony ride. (9-5, $3, closed toe shoe required.)