Torla village is walkable, though the lanes climb and the stone paving can be slick in bad weather. The park access rules matter more than the village transport.
From late June to mid-September, and often during busy holiday periods, private cars are restricted on the road into the Ordesa valley. Use the shuttle from the car park below Torla to reach the Pradera de Ordesa trailhead.
For Bujaruelo, a car is useful, though the road is rougher and more mountain-like than the main approach to Torla. Drive slowly and expect walkers, cyclists, and livestock.