Highly regarded free city tours that begin at Rathausplatz and explore most of downtown Hamburg's attractions over three hours. These guides work hard and if you enjoy the tour, a tip is expected. They also run tours of St Pauli (€12, 7pm) that leave from the Clock Tower, and a popular Hamburg Pub Crawl (€12, 9.30pm) that starts in Beatles Platz, Reeperbahn.