Lighthouse on a NE & Shelly's & Town beach are the pics on a southerly. Flynn's is not ideal, it's a small beach and if the flags are up there's little room to surf or SUP. Not sure about hire ? There is a Sup school run by Tony Begg & Jordan's out on the river might be worth a call for info ? Good luck ..... there's always a wave somewhere in Port.
Go north up the coast to the point breaks, be careful crowded in the holidays, lighthouse can get rippy, town beach provides good long rides. North haven in a good swell, watch for friendly fins around the river mouth.