Here the irresponsible, eloquent, enjoyable Buckley guides us through his beloved Azores, and through the Galapagos (“the Bronx Zoo at the Equator”), about which he inclines more to Melville’s view than to Darwin’s, and through places such as Johnston Atoll, where mysteries and hostilities await. On a hilarious side adventure, we have a memorable encounter with “The Angel of Craig’s Point.”

Along the way, Buckley navigates among pleasant diversions as well as unforeseen navigational and philosophical shoals. He adroitly excerpts the candid journals of his shipmates, notably that of his son, Christopher, himself a best-selling novelist. The fine photographs by Christopher Little illustrate throughout. When Buckley’s Sealestial sails, finally, into New Guinea, we have shared a unique experience with a special breed of sailor, skipper, host, friend, and human being.