Robin Petch is a Trustee and Regional Co-ordinator for the Sea Watch Foundation. Kris Simpson is also a Sea Watch volunteer and has worked with International Dolphin Watch for over 20 years.
Together they have watched whales and dolphins on 5 continents and have almost 50 years experience of whale and dolphin watching between them.
The book "Yorkshire's Whales, Dolphins and Porpoises" contains many beautiful photographs, taken mainly by the authors. The text of the book explains how to improve your chances of seeing and recognising various species, not just in Yorkshire but wherever you may be.