I met my sister at the Q Station recently on a magical Sydney Summer day. It is part of the larger historical Quarantine Station that now has a cafe and restaurant. The buildings have been gently restored & are beautiful. Just wander around & look at the brickwork & lovely hardware & doors. In the rock face, shields & flags have been carved with dates & names. Otherwise just bake on the sand & swim in the harbour. You can catch the shuttle bus up & down or as I did, tackle the stairs & check out the glasshouse near the bend.