Every Sunday, I used to take a walk into St. James's Park; a beautiful meander around the ponds and gardens of Buckingham Palace. Entering near the St. James's Park tube station, I would exit at Trafalgar Square. The most riveting part of the adventure to me was spotting the ducks. There are dozens of species of them floating around the waters, and the park gives a full description of each of them. A charming activity for a Sunday, and given the crowds, apparently thought by many.