Meteora are known worldwidely for the inexhaustible climbing routes and their irreproachable organisational infrastructure.
The rock: The rock is unique in Greece. The rock is conglomerate with a lot of either small or big gravel compacted in a uniform mass. Attention and experience is required for the choice of more sound steps and holdings. In general, in the classic routes the most of the more unsound gravel have already fallen and the remaining are very stable. The climber however should be careful to stay in the designed route. In the new routes the unsound gravel are more.
Permanent safeties: The safeties are as few as possible less. Specifically in easy routes up to 5th - 6th degree, the distances between the safeties are often 5 - 10 m. The more difficult routes are usually well secured. There are also however certain educational, densely secured routes. Is required, therefore careful study of the climbing directory before the climber begins for the carrying-out of any route.
The climbing routes are separated in 5th, 6th, 7th and 8th degree of difficulty. More analytically we have:
5th degree difficulty
Ostria V+, 60 m
Isidora V (VI-) 60 m
Eastern Edge Pantocrator VI+ (V+, A0) 120m
Pillie of Dreams V+ (VI) 250m
Guardian of Saint Spirit, “South-western Edge” V (VI-) 180m
Westerner edge Ypsiloteras (of the highest) VA1 (VI-) 130m
6th degree difficulty
Heaven Stairwell VI 130m
Dance of the Dawns VI-A1 (VII-) 130m
Wall of vulture Westerner Edge VI 140m
Falling Drop VI 180m
Fat End VI 120m
Wall of Penaeus VI A1 (VII+) 80m
Swiss cheese VI – A1 (VII-) 180m
Hypoteinousa VI 180m
7th degree difficulty
Adrachti, Silky Spinner VII- 45m 
Adrachti, Roulette with gravel VII 45m
Diedro of Schizophrenia VII 180m
Rock that hangs, North Wall 90m VII+
Iphigenia VII (VIII) 250m
Sophocles VII 180m
Eternal Route VII 220m
Sfiri & Drepani VII +120m
German traditional dance VII+150m
8th degree difficulty
Action Direct VIII- A2 200m
Douet VIII 120m
Adrachti route of the scorpion VI, A1 (VIII+) 45m
Risky Dancer VII A1 (VIII), 90m
ATHINA VII+ A1 (IX-) 215m

Source: www.agro-tour.net