I'm travelling to Helsinki at the end of the month and I've decided to fly with Finnair as BA are likely to be striking during my travel period. I'll be departing from T3 for the first time. Which lounge will be most appropriate as I'm a Silver BA member travelling Finnair? I've heard that there's a Cathy lounge and that new BA lounges are proposed at T3, which will be best to sit, relax, drink and munch..?? I'd hate to think that I'd been sat in the 'wrong' lounge.. Any advice greatly appreciated.