Mike C and Anthony B,
I have been going out to play The Coast with my dad a bit lately because it's cheap and is a pleasant walk, and every time I can't help but shake my head at what could be built on that land that comprises St Mick's, The Coast and Randwick.
The three courses measure a combined 300 acres. There is a pinch point between church and beach, which separates 10-17 at The Coast from the rest of the course -- that is a major impediment to a coherent routing, but with that as a border of two 18-hole courses you'd have about 110 acres on what's now Randwick and 11-17 of The Coast and about 190 acres on the parcel that houses the rest of The Coast and all of St Mick's.
The three courses have a combined 3.5km (two miles) of clifftop absolute seaside land, most of which already houses golf holes, so no impediments in that sense.
Given the location and terrain, it's hard to believe someone can't get two brilliant golf courses built in place of three fairly lamentable ones. Randwick's membership is extremely aged and I know times are somewhat difficult for the other two clubs. I wonder if the climate now doesn't make it a greater possibility than when Norman tried it some years back?
This is the site for those unfamiliar