If your trip to Port Chalmers is all organized but your travel itinerary is a little on the empty side, we can give you a few hints and tips.If anybody asks why you're heading here, just show them some images of Larnach Castle and Dunedin Botanic Garden. These terrific attractions will make sure you have an awesome trip.Close to the center, Lighthouse is one sight to consider adding to your must-see list. NZ Marine Studies Centre and Aquarium and The Fletcher House are also not far away and worth checking out.