Hotel in Groton with a marina Along with a marina, this smoke-free hotel has coffee/tea in a common area and laundry facilities. Free WiFi in public areas and free self parking are also provided. Other amenities include barbecue grills and a picnic area. Thames Inn & Marina offers 32 accommodations, which are accessible via exterior corridors and feature complimentary bottled water and coffee/tea makers. Each accommodation is individually furnished and decorated. Beds feature premium bedding. Kitchens offer refrigerators, stovetops, microwaves, and cookware/dishes/utensils. Bathrooms include shower/tub combinations and complimentary toiletries. This Groton hotel provides complimentary wireless Internet access. 50-inch flat-screen televisions come with premium cable channels. Additionally, rooms include irons/ironing boards and fans. Housekeeping is offered daily and hair dryers can be requested.