City buses 9, 100, 800 and 900 run between the Hauptbahnhof and Schlossplatz (the main central stop); these lines allow you to buy a cheaper Innenstadthüpfer ticket (adult/child €1.50/0.80) for the 'downtown hop' between the two. Otherwise single-trip tickets are €2.30 and day passes €5.80; buy them from the driver as you board. For more information on bus lines see www.cebus-celle.de.
Horse-drawn carriage rides (from €5 per person) depart between April and October from the corner of Bergstrasse and Poststrasse.
Taxis often wait in ranks at the train station and at Schlossplatz. Otherwise call 05141-444 44 or 28 001 or try www.bettertaxi.de/en. Expect to pay around €50 each way between Celle and Bergen-Belsen.