Brisbane, Gold Coast, Sunshine Coast area?

Hey anyone from Brissy, the Sunshine Coast or Gold Coast know any nice spots where my boyfriend and I can go away to for our 2 year anniversary... And any good hotels? We just want to have a romantic getaway that's also affordable... Would be nice if the hotel had a spa bath in the rooms too... Or a big bath... Been looking all around at different places and nothing has jumped out at me yet... Hopefully someone can help :) pleeeease