Flyfishing the Squamish is one of my favorite types of fishing! The fish are very fresh, and the water is perfect for drifting the fly. It's not uncommon to hook over 30 chum in one day. I actually start to get worried about all that pressure on my rod! My arms tend to get sore as well! And those fish fight hard - quite different from those Vedder or Chehalis chums. There's also the chance to hook a coho as well.
The Squamish pinks are also excellent sportfish. They too are chrome bright and fight very hard - especially when they get into the current. There's also the chance to hook a spring and they are absolutely chrome silver when they come in.
Last year, it seemed that early to mid October was the best time to get chrome chums. I went in late October and only hooked coloured fish. I know I missed it by just a week. Even though the fish were coloured, they were still in much better shape that those you would find the Fraser Valley.