Squamish RCMP say the three people were swimming in one of the pools on Tuesday afternoon at the top of Shannon Falls with a group of friends when they slipped and fell into a pool 30 metres below.
Gamble and Lyakh formed the YouTube channel High On Life - which boasts more than 500,000 subscribers - with high school friend Parker Heuser to chronicle their adventures around the world.
They had over 2.5 million followers between their various social media accounts. The hijinks occasionally landed the members in trouble.
The accident happened when the three hiked up Shannon Falls and went into one of the pool systems nearby for a swim.
YouTube star Ryker Gamble and Alexey Lyakh are both McRoberts secondary alumni. All three were caught in the heavy current and swept over the falls.
Gamble and Lyakh had made headlines before after they broke rules at Yellowstone National Park in Wyoming for a series of photos and spent seven days in jail, according to CBC News.
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In September 2016 Gamble, Lyakh, and two other friends Justis Cooper Price-Brown and Hamish McNab Campbell faced charges for vandalizing Yellowstone National park by dipping their hands into the Grand Prismatic Springs - the largest hot spring in the USA that is off limits to visitors.
The Squamish RCMP and Squamish SAR have now turned the file over the BC Coroner's service and have not released the victims' names officially. The trio, who were with a group of friends at the time, fell into a pool 30 metres below.
RCMP said they were able to confirm the location using cameras and a crew member who managed to reach the pool.
"The RCMP and Squamish SAR have transitioned to a recovery of the bodies from the pool but the terrain is extremely hard, very unsafe, and the water flow will be heavy with the warm temperatures today, increasing the risk to those in the recovery effort", police said at the time.
"Until the joint operation is completed Shannon Falls and any trails leading to the pool system at the top of Shannon Falls are closed to the public".
Squamish Search and Rescue spokesman John Willcox said a young woman was swept into one of the pools about noon Tuesday.