The document details a trip to London over 4 days. It describes the travel to London, staying in a hostel in Kensington for 10.44 euros, and activities each day including visiting London Eye, Westminster, Covent Garden, Leicester Square, Big Ben, Victoria and Albert Museum, Trafalgar Square, and Hyde Park, making use of the tube system to travel between locations. On the 4th day they fly back to Bilbao, arriving at 1:30pm and then take a taxi to return to Oiartzun an hour later, concluding the trip.