One can book a tour directly with a guide in Colonia or arrange tours at local hotels and hostels. Popular tours include: walking tours of the historic center, horseback riding, wine tours and bike tours. Tours are not absolutely necessary however, as Colonia is not very big and completely accessible by bike and foot. If you do desire a tour, call one of the following guides and tell them what you're looking for:  Sandra Waller (Tel: 522- 0502), Irma Peña (522 -4819), Lilián Chevalier (522-2079) or Aris Mata (522-2309).