They also have a small assortment of free weights and a small room for aerobic classes.
The treadmills overlook the bridge, so you can watch the crew navigate the ship.
One important thing: There are slots allocated for the treadmill, this means you have to put your name on a list for a time you intend to use a treadmill. Then the treadmill is yours for that time. If you don't have such a slot, someone who has one, will have priority over you for the use of the machine.
Take a headphone with you and you can watch TV will doing your cardio workout.