There are two built in mazes to choose from, but you can also build your own. Guests enter the maze and have to find their way to the exit. The Hedge Maze is, well, a maze made of hedges. Otherwise, the Ghost Train has enormous potential and is worth building for it's flexibility and underground features. Make sure that the cars don't go around small curves at faster than 15 miles per hour or larger curves at faster than 20 miles per hour. One of the downsides to this ride is that if there is a curve after a particularly long hill, the cars derail and crash. The Ghost Train also has several unique track features, such as the spinning tunnel, which raises the excitement rating if used sparingly or at the bottom of hills.
This has the benefit of not only raising the excitement rating, but if the ride is built mostly underground, the ride will be considered 'indoor' and will not scare away guests during the rain. Ghost Train rides also have the ability to go underground. Because it is on a guide track, you don't have to worry about inertia carrying the car. The cars run on a single guide track, but the track can go uphill or downhill. The Ghost Train ride is one of the more versatile gentle rides.