It’s another of Mum and Dad’s phone box spots!
(Coordinates 56°23’36.5″N, 4°42’86.4″W.)
Interestingly, there are several photos of this phone box online that indicate it was only turned into a defibrillator box at some point between 2016 and 2018. Trossachs Pier is in the middle of nowhere and there seems to be a lot of cycling and other activity going on, so this could be a very useful development.
Another one from Loch Katrine next week.