By taxi, or car. In the summer most cars will make it, but in the winter season a 4x4 is a must. During heavy snowfall, it is illegal to use a 2x4 car not equipped with snow chains.
On foot, or by car.
The nature, the rock formations, the views.
Ski in the winter, trekking all year round.
Souvenir shops sell the usual tourist items. Focus on the local edible products such as soutzouko.