The key answer of exercise 2

Cost

The sightseeing and the camping holidays can be done cheaply but the mountaineering holiday would require lots of money for equipment.

Pace

The pace of the sightseeing trip could be quite fast and dynamic, while the mountaineering trip would require a more fixed schedule; the camping trip is very quite.

Spontaneity

It is easier to be spontaneous on the sightseeing trip.

Freedom

On the sightseeing holiday you are free to do what you want; the mountaineering and the camping holidays would appeal to people who want to get away from others.