Not so much a mountain pass as a hill pass, but you won't be disappointed.
Set directly next to the bustling city of Barcelona, this
is a secluded stretch of road though a forest hill park.
Very little traffic, with plenty of challenging tight
corners that should see you getting your knee down every turn.
Road surface is good, just watch for the odd patch of gravel hence why Id suggest giving the road a medium paced ride first before giving it the beans!
I never saw any police but with its proximity to the city be wary just in case.