Here is additional information regarding the NSCL and FRIB tours at the "Rare Access" open house.

• The NSCL tour route has no stairs, whereas the FRIB tour includes about 60 stairs to access the accelerator tunnel (60 down, 60 back up). However, the majority of FRIB tour stops are on the ground floor. For those unable to venture into the tunnel, video monitors showing the tunnel tour path are available on the ground floor of the FRIB tour, and will also play in the FRIB Theater.  
• There is a fair amount of walking involved if a person takes both tours.
•  
  • NSCL tour route: about 790 feet
  • FRIB tour route (ground floor): about 230 feet
  • FRIB tour route (tunnel back up to ground floor): about 730 feet
  • Walking distance from NSCL building to start of FRIB tour: about 600 feet or 350 feet (depending where you exit NSCL building)
• Considering all the potential walking and the fact that the FRIB tour is on a construction site, we encourage people to wear sturdy, comfortable shoes and clothing.