Not really Estuary but don't know where else to put it.Just had 11 days on King Island with work but managed 4 sessions of the important stuff.Did'nt really get too much,plenty of Salmon throwing a lure around off the beaches but,unfortunately,no big buggers.The best may have reached half a kilo.Good fun thoughThe only other thing I got was the biggest Squid I've ever seen which fell to a jig from the Grassy wharf.
As a matter of interest there is some prime Gummy Shark real estate available on the Island.The beaches just drop off into deep water or really good gutters.