Here are some of the best dragonfly sites in Norfolk. Each site has a dedicated page, which includes a list of species recorded there. Of course you need to be there at the right time of year: you won't see Migrant Hawkers in June or Four-spots in August. So the guides need to be interpreted with this in mind. Don't expect to see all the species on a single visit.
Either click on the blue squares on the map or use the menu on the left.