Northland has lot a few watermarks with the Bing base textures being updated, but also gained some new ones too. The blending of these into the sea textures are a bit hit and miss- seamless in some areas and very jagged in others:
Other large watermasks around the country that I believe have been included but are yet to be visited include the Coromandel, the Marlborough Sounds, Lake Tekapo & Lake Grassmere.