Mangroves are uniquely adapted trees and larger shrubs that inhabit the tidal sea edge. The habitat they form is rich in plant diversity and structural complexity, but this varies from place to place.
The New South Wales (NSW) coast is a high wave-energy coastline, where mangroves are confined within sheltered embayments and estuaries. Of the 133 estuaries and small coastal creeks in the state, 69 contain mangroves, covering a combined area of 107 km2.
When I quickly read your title, I thought it said "Mangoes".......and I was wondering where in NSW did we grow mangoes! Lucky I went back and spent a little more time focusing on what you REALLY wrote :)