I have been there. From memory I think there is a hill west of the harbour called capston hill which is a nice viewpoint. Photographically this time of year you would be shooting with the light illuminating the coast to the east at sunset I reckon. Blue hour shots around the harbour would be nice but if it were me I think I'd be going up the hill that is east of the harbour for sunrise, good view over it and you may get the colours in the sky behind it...