Ice diving

Ice diving is a type of underwater diving where the dive takes place under ice. Because diving under ice places the diver in an overhead environment typically with only a single entry/exit point, it requires special procedures and equipment. Ice diving is done for purposes of recreation, scientific research, public safety and other professional or commercial reasons.

Overview

Ice diving is considered a type of technical diving due to the additional hazards it presents. It is typically done in the presence of a support team on the surface. The surface team is responsible for tending the divers' lines (lifelines), managing safety and communication, and being prepared to effect a rescue if necessary.

Equipment

Ice divers typically use standard scuba equipment, but may also use a dry suit for insulation, as the water under ice can be very cold. A diving mask or diving helmet is used for visibility underwater, and diving fins for propulsion. Divers are also typically tethered to a surface line, both for control of the dive profile and for emergency recovery.

Safety

Safety is a critical concern in ice diving. Divers are typically tethered to a surface line, and a diving signal system is used for communication with the surface. The surface team monitors the divers' progress and is prepared to assist in an emergency. Divers are also trained in special procedures for ice diving, including emergency procedures.

Training

Training for ice diving is typically provided by dive training organizations. It includes both classroom instruction and practical training dives. The training covers the special equipment and procedures used in ice diving, as well as safety considerations.

See also

• Underwater diving
• Technical diving
• Scuba diving
• Diving mask
• Diving helmet
• Diving signal