Volker taught us a lot about Maya culture and was very generous in sharing his knowledge. He gave my husband and I food for thought. He was very considerate of our needs and highly responsive to our interests. this trip through X ian K ann was a fantastic day for us as we got to Bird Island and went snorkelling with Volker in beautiful clear waters. We are very grateful to him for the tour and strongly recommend it . will book again with him anytime with great pleasure.