When we look at rivers, we're usually just skimming the surface. Flying alongside the St. Lawrence River are bald eagles, osprey, and black terns while muskrats, porcupines, and beavers scamper along the shore. If you dive beneath the fresh waters of the river though, you'll see an ecosystem of small mouth bass and freshwater gobies, nestled between chunks of rock reefs. Nathalie Lasselin is a diver. While she's explored the Arctic and underwater caves in China, she felt drawn back to the waters of her home - Montreal. About 36 feet underwater, Lasselin and her team collect water samples for testing and scavenge for man-made debris. In 2019, they collected 6 tons of debris - roughly the weight of one African Bush Elephant. Learn more about Nathalie at RiversAreLife.