Just found this in my bookmarks might be worth a try the next time.
54°40'12.25"N 5°39'20.41"W
Ballyholme harbour.
Hello stay in a carpark on the seacliff road,to find this down bangor main street keep going straight and keep the water on your left tha park is beside yacht club very nice view ,no noice nothing their but it is very nice to watch ship comming in and out of harbour their was three of us their going back soon ( stephen53 )