Coastal/Landscape spots in Ayrshire?

[chrism_scotland]

Folks,

I've got a few hours to kill today while I wait to give the wife a life home from a hen party in Glasgow and I was thinking about heading into Ayrshire for some coastal shots but wondered if anyone could recommend some good spots?

 

[RBaker]

Culzean Castle.
Turnberry lighthouse.
Dunure Castle
Greenan Castle, just along the beach from Ayr.
All within a few miles of each other.