If you’re talking about the pic at the top of this thread, they are practicing water landings. The Sea King is an amphibious aircraft and capable of landing and floating on the surface, although it’s not very stable when doing so.
Judging from the pic, I’d bet this helicopter is from the HT406 helicopter training squadron at CFB Shearwater, and the body of water is Lake Morris, just on the edge of the base. Note the yellow tape used to prevent leaks around various hatches and such, since they no longer seal all that well on their own.
The sad thing is that they were flying exactly the same helicopters 17 years ago when I worked there, and they were already overdue for replacement at that time. The Liberal governments of Jean Chretien and Paul Martin deserve all the blame, both for cancelling the EH-101 contract, and eventually for signing the contract for the Cyclones which didn’t even exist yet.
Many thanks for the indo, especially all the great little detaios, like the yellow tape. Could you explain what is meant by a “water landing?” Do you mean that this copter is designed to land on the water and float? Do the engines stop? What is the advantage of a water landing, as oposed to hovering a few feet above the surface? Thanks