Nice to see people getting out there.
I managed to have a detect today - nothing really found.
Keep in mind that $ coins are not in the comp, nor Australian $1 & $2 (as they're quite spendable).
Here is a clue - someone has a huge lead, several people have got the coin already, so the leader can be caught up with - keep hunting
[maybe it was a bad idea to do North Island Vs South Island in the winter ]