Air traffic controller alerts the pilot to the presence of a boat

Shortly before a collision involving a float plane on Saturday in Vancouver's Coal Harbour, a tower controller called attention to a westbound pleasure boat approaching the northern end of the takeoff zone, according to an audio recording of communications with the pilot.
“Caution for the westbound boat ... takeoff northwest at your discretion,” a controller can be heard saying.
In the aftermath, controllers worked to divert planes away from the area due to an “incident in the harbour.”
“I’m on the phone with everybody right now. If you want to land somewhere else or go to YVR, that is possible," one controller said.