In June of 2003 I managed to get a couple of days of riding on the North Shore of Vancouver, BC. The first day was on Grouse Mountain and the second was on Seymour Mountain. The North Shore was more insane that I had expected. Some of the trails we did at Grouse Mountain where Seven Secrets, Krikem Krankem, Leopard, and Kirkwood. On the second day at Seymour we rode The Incline, Pangor, Slash, and Bridle Trails. These trails would be quite technical on a freeride bike, and where down right challenging on my cross country rig. The riding here was quite fun and exceptionally challenging with much different terrain and technical obstacles than we typically see here in Southern California. I highly recommend you bring along some plastic courage (protective gear) with you. You will be more likely to try the new stuff. Don't worry about sticking out, everyone I saw on the trail decked out in the stuff.
To get a map of Seymour and Grouse Mountain (aka Mount Fromme) you can go to the North Shore Mountain Biking Association's website. You can also pickup of maps from many of the local bike shops. Most of these shops carry maps created by the folks at Cove Productions. If you want to pickup one of these before you get into the area you can by them online at Cove's website. The cove maps use a rating system similar to that of skill slopes. Most of the trails I rode where single black diamonds.
Most of these picture below are of the Seven Secrets Trail
I only took a couple of pictures the following day at Seymour
For more narrative video (Rated PG-13 for me being a Potty Mouth) check this 7.4 MB video titled "13 Things You Might Say on the North Shore"