Those who are interested in everything nautical will enjoy Whangaruru Harbour. It's a nice place to go for a stroll by the water and admire some boats.
You'll have no end of sightseeing choices when visiting Northland. Whangaruru Harbour is an ideal place to start here, but there are lots of other fine attractions to discover. Bland Bay Beach, Oakura Bay, and Ngaiotonga Scenic Reserve are close to the place for ships to anchor and will fill in your day nicely.