Currently, A-C, A-D routes are not making any sense to me.
If the goal was to complete the circuit, arriving at start point A, that means you have to travel both tundra and hike the mountain, no matter the order.
If B was the goal, then yes, it makes sense to choose C over D or vice versa.
If the goal was to complete the circuit, arriving at start point A, that means you have to travel both tundra and hike the mountain, no matter the order.
If B was the goal, then yes, it makes sense to choose C over D or vice versa.