In the architecture of a ship, a companion or companionway is a raised and windowed hatchway in the ship's deck, with a ladder leading below and the hooded entrance-hatch to the main cabins.  A companionway may be secured by doors or, commonly in sailboats, hatch boards which fit in grooves in the companionway frame. This allows the lowest board to be left in place during inclement weather to minimize water infiltration.  The term may be more broadly used to describe any ladder between decks. 
The PS General Slocum was a sidewheel passenger steamboat built in Brooklyn, New York, in 1891. During her service history, she was involved in a number of mishaps, including multiple groundings and collisions.
A deck is a permanent covering over a compartment or a hull of a ship. On a boat or ship, the primary or upper deck is the horizontal structure that forms the "roof" of the hull, strengthening it and serving as the primary working surface. Vessels often have more than one level both within the hull and in the superstructure above the primary deck, similar to the floors of a multi-storey building, that are also referred to as decks, as are certain compartments and decks built over specific areas of the superstructure. Decks for some purposes have specific names.
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water. Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin nauticus, from Greek nautikos, from nautēs: "sailor", from naus: "ship".
The quarterdeck is a raised deck behind the main mast of a sailing ship. Traditionally it was where the captain commanded his vessel and where the ship's colours were kept. This led to its use as the main ceremonial and reception area on board, and the word is still used to refer to such an area on a ship or even in naval establishments on land. Many such facilities have areas decorated like shipboard quarterdecks.
Serenity is a fictional spacecraft that appears in Joss Whedon's Firefly television series and related works. Set in the 26th century, the series follows the nine-person crew of the Firefly-class vessel, a small transport ship, as they earn a living through various legal and illegal means. The ship is the main setting; it appears in all fourteen episodes, the film, and several comics.
The set of large ornate staircases in the first-class section of the RMS Titanic, sometimes collectively referred to as the Grand Staircase, is one of the most recognizable features of the British transatlantic ocean liner which sank on her maiden voyage in 1912 after a collision with an iceberg. Reflecting and reinforcing the staircase's iconic status is its frequent, and prominent, portrayal in media.
A cockpit is a name for the location of controls of a vessel; while traditionally an open well in the deck of a boat outside any deckhouse or cabin, in modern boats they may refer to an enclosed area. Smaller boats typically have an aft cockpit, towards the stern of the boat, whereas larger vessels may provide a center cockpit with greater protection from weather. On a recreational sailboat, the cockpit is considered the most safe external location for crew.
USS Lydonia (SP-700) was United States Navy patrol vessel in commission from 1917 to 1919 that saw service during World War I. Prior to her U.S. Navy service, she had been William A. Lydon's private yacht, Lydonia II, from 1912 to 1917. She spent most of the war based at Gibraltar, escorting and protecting Allied ships in the Mediterranean and along the Atlantic Ocean coast of Europe. After her U.S. Navy service ended, she served from 1919 to 1947 in the United States Coast and Geodetic Survey as the coastal survey ship USCGS Lydonia (CS-302).
The National Sea Rescue Institute (NSRI) is a voluntary non-profit organization in South Africa tasked with saving lives through drowning prevention. It operates 41 bases comprising coastal stations and inland stations on dams. There are crews on standby at all hours. There are over 1000 volunteers equipped with sponsored rescue craft, rescue vehicles, quad bikes and tractors, supported by an operations department at the head office.
The C&C Landfall 39 is a sailboat that was designed by C&C Design and Robert Perry and first built in 1985. The boat has a centre cockpit deck layout, which allows for an aft cabin interior.
The Greenwich 24 is an American trailerable sailboat that was designed by George H. Stadel Jr. as a cruiser-racer and daysailer. It was first built in 1968.
The Typhoon Senior is an American trailerable sailboat that was designed by Carl Alberg as a cruiser and first built in 1984.
The D&M 22 is an American trailerable sailboat that was designed by Sparkman & Stephens as an International Offshore Rule Quarter Ton class racer and first built in 1971. The boat is Sparkman & Stephens' design #2090.
The Dufour 24 is a French trailerable sailboat that was designed by Michel Dufour and first built in 1975.
The Elite 25, also called the Feeling 720 NV, is a French trailerable sailboat that was designed by Michel Joubert of Joubert-Nivelt as a cruiser and first built in 1982.
The Eolia 25 is a French trailerable sailboat that was designed by Philippe Briand as a coastal cruiser and first built in 1983.
The Mark 25 is an American trailerable sailboat that was designed by Canadian George Harding Cuthbertson, as one of the first works under his new design firm Motion Designs Limited after he left C&C Design. The boat was intended as a racer-cruiser and first built in 1984.
The Montego 20 is an American trailerable sailboat that was designed by Johannes "Jopie" Helsen as a pocket cruiser and first built in 1976.
The S2 6.8 is an American trailerable sailboat that was designed by Don Wennersten and Arthur Edmunds as a racer-cruiser and first built in 1976. The designation indicates the approximate length overall in meters.
The Terrapin 24 is an American trailerable sailboat that was designed by Dave Westphal as a cruiser and first built in 1973.