The list was then sorted in a descending order and the top 20 destinations were chosen as the best places for adventure travel in the world.
To rank our list of best places for adventure travel in the world, we used 2 metrics. The first was the number of times each place had been recommended in our preliminary search. As expected, this introduced many ties. The second metric we introduced was a ranking factor. The ranking factor calculated the average position of a place in an existing list relative to the size of the list. For example, a place recommended at number 7 on an ascending list of 20 best adventure travel destinations would be given a value of 0.35. An average of all such values for a place were used as the ranking factor. By accumulating the ranking factors and frequency, we developed a scorecard. The list was then sorted in a descending order and the top 20 destinations were chosen as the best places for adventure travel in the world.