If you can avoid the slightly disconcerting packs of feral dogs that race across the plateau - and occasionally snarl at cornered tourists - then the Bucegi mountains are fantastic, not least because a cable car ascends to the top. Then it's an undulating plateau culminating in the huge Caraiman cross that overlooks the valley directly and vertiginously below. Airy and easy and fairly quiet until the cross is close.
Google map: bit.ly/JkkLMK