Tasmania is a great place to do a surf trip, colder in winter and comfortable in summer!. Still all the dangerous wildlife,.
The east coast will kick some seriously good fun waves with swell from the whole range NE to,south , look at google earth and place your bets.
Winds are the difference between magic and tragic! South Arm out of Hobart has hidden gems, Clifton Beach and Betsy Island.
You can head to,Bruny Island, . You will need a seriously good 4x4 for some of the obscure places, the west coast definitely and your freeze your bits off serious surf, wild isolated and definitely life threatening if injured!
Great scenery, beer and food!

Lots of miles and petrol costs!