Looky, a boat ride! That's some boat, it appears to be built from PVC pipe and tarps. You won't see any animatronic hippos or elephants on this river (animatronic elephants are extinct in Canada).
And another boat ride... this time it's a strange outrigger thing with a sail made out of an old wool baby blanket.
In the foreground is a "giant size molecular abstraction that gleams in the sun by day and takes on an aura of mystery by night" - part of the Polymer exhibit. Behind it is the Pavilion Du Telephone: "Canadian telephone companies tell the story of Canada and communications within the context of Man and his World". In the brown cylindrical portion of the building, guests could view "Canada 67", a thrilling Walt Disney film in "Circle-Vision 360˚".
Over to the left is what I believe to be the "Man the Producer" pavilion. The exhibits were divided into three sections, "Resources for Man", "Progress", and "Man in Control?". Expo '67 was the most successful World's Fair of the 20th century, with over 50 million visitors. Most photos don't look particularly crowded...
.... but just look at the queue waiting to get in to see the Circle-Vision 360˚ film!!