....With something really obvious, The Panama Canal:
Looking north towards the Caribbean (check a map it is north) viewing Lake MiraFlores which separates the Pedro Miguel Locks from the Miraflores Locks. We are looking at the The Pedro Miguel Locks upstream.
The Miraflores Locks lead to the Pacific Ocean.........
And the Miraflores Spillway keeps the Canal Level above Pacific Sea Level.
I still have about a hundred slides to scan, but I've done enough to get started.
Camera: Minolta X-700
lens: Tamron 28-200 f/2.8 zoom
Film: ENC-II (motion picture film)