I too have been concerned for quite a few years about the American Submarine Memorial Plaque on the Island Bay Bandstand and I recently wrote to the American Embassy to see if they would be able to find a more suitable site for it. I received a very nice reply from them promising to look into the possibility, but so far have received no further information.
I do feel that they deserve more recognition for their contribution and sacrifice in the Pacific theatre of World War 2. To be hidden away in obscurity is just not good enough.