On Sunday afternoons at 14:00 anyone can join the free walks led by Het Gilde Utrecht (Utrecht Guild). No reservation is required; just show up. Het Gilde is a volunteer group of mostly elderly Utrecht residents who enjoy sharing their love of the city with its guests. During the 90-minute walk the city is seen from a variety of perspectives. Experience Art Nouveau, Jewish life, the markets, the bridges and a glimpse of old working-class neighbourhoods. Other tours by the guild take you through the Leidsche Rijn, along the city hall, the many fortresses and the city's surrounding areas. Bicycle tours are also available.