They would run 1 km in 2 minutes 29 seconds.
Six minutes per km
50 km
29 km is about 18.019 miles.
About 16.1 km
Thr River Forth in Scotland is 29 miles (47 km) long.
5/7 of an hour
It takes 3.33 minutes or 3 minutes 19.8 seconds to run 1km at a pace of 18 km/h
The longest canyon in the world is the Cotahuasi Canyon in Peru, measuring approximately 3,535 meters (11,597 feet) deep.
Just over 6½ minutes.
Anything between 4 minutes to 8 minutes.
Try it, even cars take 2.4 hours