Rogaining, a sport of long distance cross-country navigation or orienteering, is recognised as originating where?

Question

Lawnmower racing as a sport took off in the second half of the 20th century in the UK, USA and Australia; what reason was quoted in the UK?

Answer 1

Australia
The first events with some of the features of rogaines were organized by the Melbourne University Mountaineering Club in 1947, and the sport in its current form was named, dated and regulated in Melbourne in 1976.