Hello Capt Ron,
Heron is a beautiful yacht. We are now near Southport (our side of the world)
When we were in cyclone country, a creek with not much flow was my choice for cyclone hole. Luckily and hopefully - all academic.
A few months ago I was anchored at Pt Stanley (Flinders Group - Far North Queensland) in flat, quiet conditions. Cape Grenville was 10nm away and we copped 45kn of breeze on the nose and a narrow channel to get through - under sail. My arms were stretched that morning- over 10 tacks to get through.
As I was anchored in Pt Stanley, I was reading of a cyclone that went through the same location 100 yrs ago. The pearling fleet were anchored in 40' of water and were bottoming out with each swell/wave. They found bits of boats, bodies and fish/dolphin hundreds of miles inland. It was a very sobering thought.