Take a train from Copenhagen to the Swedish town of Gothenburg (4 hours). On arrival, transfer to you cozy hotel in the downtown to drop off your bags before lunch break. After lunch (not included), take a walking city tour to explore the old Haga district, visit the famous Fish Market, see the modern Opera House and the Maritime Center (no entrances included) and take a walk at the famous Avenue with plenty of cozy restaurants, cafes, and pubs. Evening free at leisure.