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This website is an independent planning guide, not affiliated with any aquarium or its operator.

The Shark Tunnel Guide field notes on the animals that use the acrylic

Cameron Doyle · Retired marine biologist · thirty years in public tanks

Field notes

Who lives over your head

Updated 8 October 2026

Acrylic visitor tunnel through a large public aquarium tank
The tube is a pressure vessel. The animals treat it as a ridge on the floor of their tank. David Iliff (Diliff), Wikimedia Commons, CC BY 2.5

I spent thirty years watching elasmobranchs in public tanks. These pages are about the animals in the main exhibit — how they use the water column, where they rest, and why a shark tunnel works as architecture rather than as a trick.

I live in Toronto now. The building sits downtown, a short walk from Union Station. I come on weekday mornings, stand still, and wait. That is the whole method.

The animals

Sand tiger sharks, sawfish, green turtles, cownose rays. Who hangs at the glass, who feeds on the operator’s clock, and the jellyfish gallery I still walk twice.

Read the species notes

The tunnel

Ninety-six metres of acrylic, a moving walkway, a bypass for anyone who hates a belt. Why sharks swim over the tube instead of through it.

How the tube is built

I do not sell tickets. I do not hold inventory. Hours, closures, and timed entry belong to the operator. If a Saturday crush or a café that is merely fine would change your day, I say so on Planning.

Cameron Doyle · notes from the glass, not a box office