Behind the two front stations is the command area of the Bridge. The center chair is reserved for the Captain or the officer in command of the vessel. The chair immediately to the right of the Captain's is reserved for the First Officer. The chair to the left of the center chair is normally occupied by the Chief Medical Officer or the Ship's Counselor.
On either side of the command center are two curving ramps which lead to the upper deck of the Bridge. The large terminal directly above the command area is configured for two stations, Science and Security/Tactical. Flanking the turbolift door on the back wall of the Bridge are the two Engineering stations as well as two Library Computer access stations. Please note that these are the standard configurations for Bridge terminals; all terminals can be reassigned by command-level personnel. To the far left of the turbolift shaft is a curving ramp which leads down to the Deck 4 Observation Lounge (see below).
To the right of the main viewer is a large hatch which leads to a small access room. This room contains the ladder up to Decks 2 and 1. It also leads to a spacesuit locker and to Airlock 1. This airlock can be used for emergency evacuation as well as connecting to a Starbase while the ship is docked.
To the left of the viewscreen is the door to the Captain's Ready Room. The RR contains a desk, a private comm terminal, restroom facilities, a couch, and a private replicator. It is intended to be a place where the Captain can relax while still having instant access to the Bridge.
The rear of Deck 3 contains the upper half of the Main Arboretum, which extends upward from Deck 4 (see below). The Arboretum, however, is accessible only from Deck 4.
This deck also houses the Captain and First Officer's quarters, the Main Arboretum, which helps replenish the ship's oxygen supply and extends upward into the rear half of Deck 3, and Transporter Room 1.
The forward part of Deck 10 contains the ship's lounge, named (obviously enough) 10-Forward. 10-Forward is a lounge where officers, crew, families, and guests come to relax from their duties. The replicators can produce food and beverage from throughout the galaxy. Like the Observation Lounge, this room has "windows" which are actually dedicated viewers providing a look at the stars.
The forward part of Deck 25 is where the Main Shuttlebay begins. A huge, three-deck facility, it houses the ship's complement of shuttles (normally 4). The assigned shuttlecraft for the Calypso include the Pythagoras, the Kepler, the Zeno, and the Avogadro.
The forward part of this deck holds the middle level of the Main Shuttlebay. The SB Control Room is located here, permitting the officer on duty an unobstructed view of the shuttlebay, the craft inside, and the access hatch, which is controlled from here or from a terminal on the floor of the bay.
The upper level of Cargo Bay 2 extends into this deck as well, between Engineering and the Shuttlebay.
The rear part of this deck contains the floor level of Cargo Bay 2. It is connected to the Shuttlebay by a tunnel, which is large enough to permit anti-grav pallets to move cargo back and forth.
Airlock 5 is also located on this deck.