Faced with an overcast sky I decided to shoot North Curl Curl pool as I have only been there once. A good example of why it's always worth just turning up in case you get a bit of colour. 5 minutes before the sun hit the horizon I was met with some nice subtle pinks in the high level clouds.
Nikon D800, Nikkor 16-35mm, Lee 1.2 GND filter. PP in CS6 using Nik Software and luminosity masks.