shmish said..
I've never been to Australia, what is the issue with Geralton? Hot, cold, isolated or ?
Hot when the SW winds disappear. Isolated, but it is quite a large regional city with most services. Not so much wind in winter. No flat water speed spots without a 400+km drive.
I loved the place when I have been there in summer.

Somewhere around Mandura would be hard to beat IMHO, but for me in retirement, travelling is the solution.
My retirement plan was always Sandy Point, but that was formulated in the days when it was a world class flat water speed venue. Now I am retired here, and the speed strip has changed to just 'pretty good' with occasional great days, I still think this is the place for me, but I spent most of the summer at Lake George the last few years. I don't sail much at all for the 4 months of winter, but this is close to the snowfields, which is my winter passion. The South Gippsland hills on my doorstep are about as good as it gets for Motorbike riding. So I can't think of anyplace that would suit me better. I don't like heat much and I like green. This place is mild in summer and OK in winter since I ski then, and it is always green!

IMHO, no one place is ideal. Variety is the spice of life.

Follow the wind. Follow the snow. Follow your passions.