It was not 500 miles from home, but at the Waterfalls (Penang Botanical Gardens). In 1963 or so, several of my primary school teachers took the whole class from Butterworth for a picnic there.
I had a most memorable experience then. When I came out from the water to get my bag, I found it had been opened by “someone”, and the packet of peanuts and the bananas were gone ! Worse still. my shirt inside had been ripped apart.
When we left the pool later that evening, I was too shy to put on a badly torn shirt, so I travelled without it for the journey back home.
I was fearful that my mum was going to give me an earful. Instead, she said, “Never mind, that monkey was very bad”
I have not visited the Botanic Gardens for ages.
note : The title is a pun on one line in the lyrics of the old song, “500 Miles”