ACT Policing Rural Patrol Senior Constable Angus Fergusson says when heading into cold conditions people should wear appropriate clothing, bring food and water, let someone know where you're going, and carry navigation equipment and a personal locator beacon.

Police, emergency services, and ACT Parks and Conservation Service urge Canberrans to be prepared when setting out in bushland during the colder months.

The warning follows three separate rescues in national parks around the Canberra region in July alone.

ACT Policing Rural Patrol Senior Constable Angus Fergusson says people should wear appropriate clothing, carry navigation equipment and a personal locator beacon when heading into cold conditions.