Even if you don’t have kids, that fly over canada thing is pretty cool too and worth 30 minutes of your time, I went for the first time a few weeks ago. Was blown away by how good it is. edit: i expected it to be complete shit, so my expectations were low.
If you have two days, I wouldn’t waste it on a trip to the island. plenty to keep you occupied for two days.
Don’t go to the capilano suspension bridge, go find the lynn valley suspension bridge and hike the trails there.
Obviously if you want to ride, rent a bike, and ride fromme or seymour.