This is a mistake in "Iguazu National Park" coordinates.
The wrong is in 25 S 53 30 W; and here is the right one:
Iguazu National Park - 25 41 S 54 26 W
"The semicircular waterfall at the heart of this site is some 80 m high and 2,700 m in diameter and is situated on a basaltic line spanning the border between Argentina and (...)"