On August 27, 2019, our team visited Kalamalka Lake to take a look below the surface. Using aerial and underwater drones, we took footage from two angles to capture the repercussions of boat prop wash and wake on the lake’s sediment.

The boat wake created significant sediment disturbance in water 3 m deep and shallower. Sediment disturbance was still clearly visible at 4 m deep, and the impact of the wake was measured as deep as 8 m.

A longer write-up of our findings is available here, and the footage collected may be viewed below.

Please enjoy!