The Walkabouts, by Mike Saunders

Published in 1975 by Victor Gollancz Ltd, this hardcover (22 x 14.5 cm) book with intact dust jacket tells the story of Mike Saunders, his wife Liz and their four children, as they sail the North and South  Atlantic oceans in a 33ft yacht called Walkabout.  Black & white photos and drawings, the book is in very good condition.