It's interesting. The internet gives you anything from bear island through Halloween island via good tomorrow island! I'm going with bear island since Calum is the only native Gealic speaker here - and I can believe that an ancient language might call an island "bear island". Since I visited the Gealic speaking areas in recent years it seems only polite to try and pronounce the place names, and I love the descriptive nature of the names. You can feel a connection with ancient person if you have the same name for a place.
It's interesting that these names live on via maps after people stopped needing to know them. We have the same issue on the Severn. I've come to realise that every turn, every rock must have had its name in years gone by. So much is lost, when I rediscover something then I add it to open street mapping to preserve it, such as Rosemary Point or Madam pool, recently discovered by me but quickly entering into my vocabulary because I need to describe my trips on the river
Ian