The Pool at Sheraton Inner Harbor Hotel
Sheraton Inner Harbor Hotel's pool is referenced by professional travelers. Out of 3 reviews that we monitored, 2 referenced the pool, such as Oyster and Star Service.
Sheraton Inner Harbor Hotel 
Oyster
Star Service
Oyster "Guests should also consider the Renaissance Baltimore Harborplace Hotel, three blocks east, which has similar amenities but adds a pool"
Star Service "Guests swim in the small, triangular indoor pool, bronze on the sun terrace, sweat in the sauna and work out in the gym"
