I remember my first "what's in a battery" experiment. One of those big, tall, fat 1.5V types. Guess I was about 7 or 8.
Big ole carbon rod. Loads of black, wet crumbly stuff and a thin lead sheet on the outside.
DID NOT know anything about them. Didn't have no Google.
DID find out later, as evidenced by my really ruined jeans (and my burned little fingers), all about acid.
A plethora of info.
Heard a LOT from my Mom. More info.
So, Caloundra. Goggled it and it seems like a really nice spot.
Anyway, no harm, no foul. Brave of you, though, to post the whole affair.