There were actually two planes, in quick succession, one after the other.

The video clip on the first wasn't so good. But I did manage a frame-cut from it.

Quite some hardware hanging from the wings!


 

CFB Trenton and CFB Petawawa aren't that far away, as is the adjacent Petawawa Miltary Reserve. With the restricted air space over the park, it lends itself to military air activities. I've seen large air transports, a helicopter gunship and numerous jet fighters over the park, over the years. I'm sure the park's own float-plane flights are well coordinated to avoid conflicts with the military exercises.