Originally Posted by
trojanman
It's been about 6 months since the last post and I just wanted to see if Sofitel is still the only option. I'll be doing an 8 hour layover at LHR next week. I'm in BA international F class so will have access to all BA lounges in case they have added a gym.
The Sheraton Skyline has a pretty good (and newly refurbished) gym. As other poster(s) have suggested, you might call and ask them about non-resident access.