Location situated in groton thames inn marina is close to fort griswold battlefield state park united states coast guard academy and new london ferry dock also nearby are hygienic art gallery and richard douglass house hotel features thames inn marina has a marina additional amenities include barbecue grills laundry facilities and a picnic area complimentary self parking is available onsite for guests guestrooms the 32 air conditioned guestrooms at thames inn marina include