I'm making my first BA First trip in a couple of weeks and have a couple of questions. I'm traveling SFO-LHR-JNB in FC. Two LONG hauls in a row.

1. What is the "small gym" like in the arrivals lounge? Is there any gym in the Concorde or 1st lounges?

2. If I have a 3.5 hour transit time, is that plenty of time to use the gym in the arrivals lounge and get back through customs to catch my flight?

3. Are the spa treatments at the Molton Spa still first come first served?

Thanks in advance for your help. I usually take CX to South Africa but wanted to try Concorde on the way home so BA was my choice this time.