Vancouver Yacht Club.
I've been there twice and i'm not sure if you need some kind of VIP access to dine there. Both times I went was for a company dinner, and there were lots of Professional business looking type people, and older mature adults in general. They have a seafood buffet every Friday that is absolutely AMAZING. Everything, down to the salads are top notch quality.
It's located in West Van, and it looks like a big white mansion on the outside, and there's several floors inside the building... Sorry i'm not able to give you any more information. I should probably ask my boss.