my son and I use minelab gofind 20 and a 60 also old Garrett and whites at times on main Sydney beaches we get avg 20 - 30 dollars found two phones and wallet gave to council tractor guy the lucky buggars got m back car keys too! . no reward but happy to see a young couple get stuff b4 theives took them . also found few gold rings emerald mens ring in platinum, the city beaches are screen sifted 5 days a week coins do drop out but chains etc do get caught in the tractors cage. we know the drivers well as we give phones etc to be posted and returned unlike a few we se down here . karma guys will nv get big gold nug if don't do some good in the world i say. hope it helps the beach hunters .nb the waterline from low tide mark to high tide mark are NOT SCREENED so the best spots for good finds, but the salt water seems to send our machines nuts . funny enough my $130 china machine loves the salt and some water even had coil waterlogged so much for waterproofing they said it had , still works fine though . a cheap detector is very useful on beaches , be prepared for the 100 0r 200 bottle caps you dig or turn m off n miss the rings and odd currency we seem to always get a few of. Sadly a few of the delicate jewels found were minced by the tractors machinery and spat out.happy to advise best times at all beaches fr pittwater to kiama if needed . a quick note on the tiny in harbour shores and secluded bay beaches , the wealthy areas yield old steel and bottle caps , nv got more than a dollar on any of around 100 saves you a lot of miles for zero guys , cheers.