I hope I get a free premium subscription for this one!
First, you goto Fishermans Haven. Walk out the teleporter and pass the first group of drakes and skales. There should be a cliff to the left of you if you're going in the right direction.
Keep walking straight. Once you are pass the drakes etc., hold Z to look backwards and hold ALT at the same time. Look towards the cliff on the side of you and soon enough you should see some numbers pop up. Which is the amount of gold which is hiding there. It's usually above 120 Gold. Lucky chances you can get up to 210 Gold.
Run until there is a turn that goes inside left, go in there. There might be some drakes there and some skales but ignore them. Go up inside the cliff towards your gold. Keep holding alt and just follow your way up there and you shold start memorizing the path. Its the first turn left right when you go up and inside the hills.
Usually if there is no DRAKES at the turn, there will be lots of fire imps near the gold coins. Ignore them and get the gold then teleport back to Fishermans haven
Do this over and over and you can get MANY platinum very quick
. The Gold is VERY close.