Imagine a place with no defined path/trail to run for example in a jungle. Only the source and destination are given. The runners/participants should reach the destination from the source. Time is not a metric to select the winner, instead there are some pre-defined intermediary points in the jungle where the participant should compulsorily visit and get a stamp or some mark on a piece of the paper as a proof that he visited it.
The participant who visits all the pre-defined points in the jungle and reaches the destination with all the proofs only wins! The participants are only told about the count of pre-defined intermediary points so that they know they have enough to reach the destination.
Is there a word or expression for this type of run/race?