On the way to Oban after Connel are Fishermans wharf, now closed and didn't exist a couple of years ago and then Dunstaffnage marina after it. There are two small islands and a cliff at the entrance to the marina which may be what you are meaning but none of them have "official" names AFAIK.
The dive orientated operators change quite regularly up here and compressors/boats etc move around different folk so a certain amount of confusion sometimes reigns
I can't vouch for the Marina yet as I have not used them, will probably pop in and get some fills soon and see how they are. As I said earlier, early signs are good and they seemed very helpful and friendly, will see if experience bears this out. Yachties, or yoties, are usually just jealous cos they have to take an age getting anywhere, powerboats rool!
