yes we did have the sirens but i havent heard one for a very long time and im not sure if they still have them ,and yes sharks were obviously sighted.
but for some reason that has since changed, they didnt attack anywhere as often as they are now and the evidence is there to support this
i dont know if its an abundance of food or a lack of it,or the change in currents which i see no evidence of
water tempreture has remained the same according to my instruements
catching a decent fish this side of Rottnest is becoming more and more scarce with the large scale use of fish finders,so i cant see why they would come closer looking for a feed, other than the fact humans are slower
