Madrid Inside Boats in Madrid? Yes, there are boats in Madrid!. Although the city is located in the centre of Spain, both in the Retiro Park and in the Casa del Campo there are ponds where you can rent a boat. Renting a boat in Madrid and relaxing for a while on the waters of the Retiro Pond is one of the most popular activities for locals and visitors alike. With 125 hectares and more than 15,000 trees, the Retiro Park is a green haven in the centre of Madrid. It is not only one of the lungs of Madrid, but also offers culture, leisure and sport. Since 25 July