Thanks so much for getting back to me about Wavewalker! You might be interested to know that through posts on this thread I located Gordon and Mary Cook, have gotten back in touch with them and spent 6 days visiting in the UK this past summer!!! We had a wonderful reunion, I met their, now grown, children
who were only 9 and 10 when I last saw them in Hawaii
and their kids! Gordon filled me in on what happened to Wavewalker and is writing another book, a sequel to Schooner to the Southern Ocean, with the ongoing adventures after leaving HI. Should be published soon, I don't remember the name, however.