Guests staying at Residence Inn by Marriott Mystic Groton enjoy an indoor pool, a 24-hour gym, and free WiFi in public areas. If you plan to drive, free parking is available. The front desk has multilingual staff standing by 24 hours a day to assist with dry cleaning/laundry and securing valuables. If you like to take your furry friend along on your adventures, this pet-friendly property offers an off-leash area. Additional amenities include conference space, a 24-hour business center, and coffee/tea in a common area.