Been a few times to Vallnord with singletracksafari always had a good time.
Vallnord not the biggest but really good riding and no lift queues!
Worth trying to get a day at Soldeu park as well, bit less dusty than Vallnord. Maybe worth giving Martin at singletracksafari sure he could sort you out transport
See how steep the world cup track is!
Great steak house near the comercal bar.