The Pool at Hyatt Regency Tokyo

"The health-minded enjoy a spa on the top two floors, complete with eight treatment rooms, a small indoor rooftop pool under a glass roof, a modestly sized gym (a fee applies except for Hyatt's most loyal guests) and sauna, and the shopping arcade suits those with big piggy banks"

"Fees can also crop up for spa and pool access, breakfast, and parking, though these are waived for Regency Club guests"