 As a community, Milford Haven takes in the town of Milford Haven itself and the villages of Hakin, Hubberston, Liddeston, Steynton and Thornton.As a first stage of a wave power plant, there will be some testing at West Dale Bay.Organic and heavy metal chemical pollutants accumulating in variety of species including seaweed mussels, bivalves and worms have been measured in Milford Haven Waterway .