If you visit the Teodo family's sugarcane farm in Far North Queensland and make a beeline for the creek, you might make out an unassuming hole in the side of a hill.
The secret cave, in the southern reaches of Cairns, at Edmonton, will have a few vines shrouding it, if Frank Teodo has not swung the cane knife recently, and it will not look like much to the untrained eye.
To a child, it is a portal to a world of adventure.