Searoad Ferries Queenscliff - Sorrento offer a 50% discount for hitched caravans traveling at 7.00am. 8.00am and 9.00am, so its definitely worth considering using them, to pop over the bay.
AND the best part is you don't have to turn around inside the ferry, you simply drive in, and drive straight out at your destination port. What could be simpler and at half price well worth the money spent saving you traveling through the Melbourne outer suburbs, Melbourne itself, you will save a few hours for sure.
Want to Travel but Don't Own A Caravan?
Why not Hire a Self Drive Campervan, and Explore Australia.