With a number of unique galleries displaying the vast diversity of marine life in the world's oceans, the Vancouver Aquarium is one of the best-reviewed and largest museum dedicated to underwater creatures. Travelers on Canadian railroad tours stopping in Vancouver do not want to miss this top-notch attraction.

The aquarium has over 70,000 different animals in its tanks spread across exhibits like Frogs Forever?, an in-depth look into the conservation of amphibians, and Tropic Zone, which displays exotic creatures such as moray eels and reef sharks.

Closer to home, a number of showcases focus on the Pacific Northwest region. Visitors on Canadian train trips can see the giant Pacific octopus in Treasures of the BC Coast and Beluga whales in Arctic Canada.

An entire ecosystem based on Vancouver's Strait of Georgia is on display in a 69,000-gallon tank filled with halibut, crabs and other native ocean life at the Pacific Canada Pavillion.

Sea lovers may want to try an immersive experience such as swimming with whales or journeying across the The Wild Coast walkway, where guests can interact with dolphins, sea otters and harbour seals.