Mariner of the Seas cabin 8318 is a Deluxe Oceanview Stateroom with Private Balcony. Cabin located in the Midship section of the ship. The Deluxe Oceanview Stateroom with Private Balcony on the Mariner of the Seas has floor-to-ceiling sliding glass doors that lead to your private balcony, two twin beds that convert to a queen-sized bed, considerable closet space, a private bathroom with shower, as well as a living area with desk, drawer space, vanity, and sofa. The fact that Deluxe Staterooms have a balcony, sets them apart from standard staterooms. The interior of the room itself has 3% more square footage than standard sized staterooms. In addition, each stateroom also has its own flat-screen television, thermostat controlled air-conditioning, internet access, direct-dial telephone, radio, mini bar, individual safe, and 24 hour room service. Cabin Square Footage: 184 square feet, balcony 46 square feet.