Since 1978 in the travel business and an official Tour Guide since 1989 for Barcelona and Catalonia, Ton-David was always searching for professional excellence. Be it conducting adventure tours through the U.S., Mexico and Guatemala, or being one of the youngest hotel managers in Minorca. He also worked for a couple of seasons as a tour guide in 8 languages for the best canal boat companies in Amsterdam, Holland. With a solid international working experience and traveling background, his clients range from Prime Ministers, Nobel Prize winners, TV teams, Travel writers, celebrities, etc., to private groups or individuals who asked for a special Catalan touch during their discovery of Barcelona. Most reputed hotels, travel agents, corporations, and individuals who wanted a quality tour and accuracy in the explanations have hired him.