There are two modes of travel available: walking and teleportation.
Walking offers more degrees of freedom than teleportation, and is indispensible for thorough exploration of any site. For this reason, unrestricted pedestrian access is an important factor in assessing the value of different routes and destinations.
It is however, quite slow for covering large distances, although travel by road mitigates this slightly.
Climbing and falling are special cases of walking that can sometimes be useful or necessary means for getting somewhere.
The main advantage of teleportation is speed. If however you don't know which series of telepads to use, it might take longer to find your destination than walking. It also provides no sense of direction or distance, so it might be necessary to check location more often.
It has the added benefit of bypassing any intervening wilderness, or other physical obstacles.