Anniversary Day Trip Places

Hi guys,

I'm having my anniversary with my girlfriend - soon to be fiancee, in a little while.

Just wondering if anyone would have suggestions for day trip places to go within 1 - 1.5 hours of Sydney? We've done Wollongong, Gerringong, Ettalong, Kiama, Blue Mountains. I'm more wondering if you know some beautiful places unknown to the masses.

Thanks OzBargainers :D

Ramsheeper