I enjoyed a wonderful afternoon touring Tijuana. Marisol was my guide - she is friendly, knowledgeable, and speaks excellent English. She took us to a wide variety of sites that covered history, architecture, shopping and dining. She was open to our input, and helped negotiate purchases too. Even though I have been to Tijuana before, I saw many new things and learned a great deal about the founding of the city and its importance on the border. Strongly recommend this tour, and this guide!