Following Starlight Express, their last day was to be spent getting together with Robert and Sarah to on the London Eye.  Lori had already gone on it with her parents while they were in London but didn't mind another trip.  

Here is a boarding pass.  There was a half hour-45 minute wait to get on the eye but it didn't matter.  It gave everyone a chance to chat and catch up.  It cost £9 to ride.  The Eye is located right on the River Thames across from Parliament so it's in an excellent location!