Don't have time for a proper holiday, a day trip or mini getaway to Macleay Island in Moreton Bay is one of my favourite things to do.
Catch the passenger ferry over (or take your car over on the barge for $55)
We took our car, but the island is small enough to do without.
You would need a bike as walking would take awhile if you plan to cover the whole island. Bike hire is available on the island.
If you plan on staying a night or two, look up on Airbnb as there are some very cute and well priced waterfront homes (with spas) available.
There is a pub near the ferry, but i suggest skipping that and heading to the waterfront bowls club on the other side of the island. Amazing views, and delicious food. They even have live bands on Saturday night. The place was packed last time we were there, and i think they do a Sunday Session Barefoot Bowls.
Also - The fish & Chip shop is amazing and will deliver !! A must