Our party of 4 adults highly recommends Carlos Medina as tour guide of San Juan. He is the most personable, engaging, and charming guide you could find. Carlos is prompt, has a fully airconditioned van which accommodates peole with mobility ddifficulties, and provides snacks and water for the guests. He even takes photos as your tour San Juan. He is extremely knowledgeable of the history, environment and culture of the area. He speaks English very well, and has a genuine interest in his customers. The cost of our 2 1/2 hour tour was reasonable, and Carlos also sent us copies of his pictures. Make Carlos your first and only choice....you will not be disappointed!!!!!