Cardiopulmonary resuscitation (CPR) is a life-saving emergency procedure performed on individuals whose heart or breathing has stopped.

Emergency medical services (EMS), also known as ambulance services or paramedic services, are emergency services that provide urgent pre-hospital treatment and stabilisation for serious illness and injuries and transport to definitive care.

First aid is the immediate and temporary care provided to an injured or ill person until professional medical assistance arrives.

A lifeguard is a rescuer who supervises the safety and rescue of swimmers, surfers, and other water sports participants such as in a swimming pool, water park, beach, spa, river and lake.

London is the capital city of England and the United Kingdom, located on the banks of the River Thames.

Resuscitation is the process of correcting physiological disorders (such as lack of breathing or heartbeat) in an acutely ill patient.

The Royal National Lifeboat Institution (RNLI) is the largest of the lifeboat services operating around the coasts of the United Kingdom, the Republic of Ireland, the Channel Islands, and the Isle of Man, as well as on some inland waterways.

Sport refers to any activity that involves physical exertion and skill in which an individual or a team competes against another for entertainment or to achieve a specific goal.