Many deckhands only spend short periods of time at sea, however, with experience and greater training they may spend weeks or months at a time away from land. They work as part of a team and must follow safe work practices to minimise the risk of danger to themselves, other crew members and passengers. They often work outdoors, in a range of weather conditions, though even when working indoors they may be exposed to rough weather conditions, which can be unpleasant. Hours of work can vary greatly depending on the type of vessel and the season, with longer shifts generally required in summer months. Some deckhands may work shifts, which can include nights and weekends.

Deckhands use ropes and knots for a variety of purposes, including berthing vessels and tying down cargo. They may also use navigational instruments and radio equipment, usually under the supervision of a senior crew member. Safety equipment is very important and can include fire-extinguishers, life jackets and inflatable life rafts. They may also use standard cleaning equipment and hand tools to carry out general maintenance duties.