I’ve been asked to deliver this parcel to my cousin but he lives on an island and doesn’t have an address to send things to, like you or me. It’s not a problem though, because I know a good ...

Well, on that day the sun is above the Tropic of Capricorn, so your latitude would have to be 23.5 degrees S. It's a good thing, if you're a navigator, that the Earth spins around at such an even ...