This is very interesting. The last two times I went fishing have been very good. No reason why Botany Bay would be so different to Sydney Harbour.
Maybe I should try the Harbour
The Trevally need to be blead, straight away. They are not the best eating fish and bleeding does help. I have also been inform that they do not freeze well, but that it not something that I can tell you much about.
I have one that I have not used for fishing as yet but have used it for general work around the house. It is an energizer one that straps to your head. This was given to me some two years back.
I also have one that I used to use for fishing but I have not gone fishing at night for ages. This was one that I picked up at one of the local tackle shops.
I guess the one you might have purchased might not have been water resistant.