Tourism is a sport, hobby, short traveling and cognition the environments, landscapes, monuments, customs and people.
Tourists are coming back to their place of habitual residence.
mountains
Mountains are group of hills, peaks surrounded by lowlands.
Part of the landscape above the lowlands, not only the tops, but also saddles, valleys and plateaus belong to the mountains.
Mountains can be separated from each other mountain passes or rivers.
climbing
Climbing or "mountaineering" is a kind of sport, hobby, lifestyle, or we can also say the mission.
All types of climbing have a common movement or progress in the vertical terrain.