Here's a link to a page about surfing a big tide change in the Skookumchuck Narrows up by Sechelt on BC's Sunshine Coast. About half way down the page on the left there's vid of the surfer bein towed in and set loose. The tide rips thru there:
http://www.surfingvancouverisland.com/surf/st414skookumchuck.htm

I found the link on this Vancouver Island surf site. It's a segment of the main site CoastalBC.com which covers all types of recreation on VI. I stumbled across it looking for a vaca rental in Ucluelet when my bros and I towed my boat up to fish and dive in Barkley /Sound:
http://www.surfingvancouverisland.com/surf/

How about surfing an Amazon River tidal bore for a long ride:
http://www.youtube.com/watch?v=4ZuZiLuHM1A