The Selvagems, shearwaters, and surviving shipwreck

Most readers won’t have heard of the Portuguese Selvagem Islands, far flung, bird rich, extinct volcanoes in the Atlantic between Madeira (280 km) and the Canaries (165 km).
In 1981, I was living on La Gomera in the Canaries when my brother, on Tenerife, told me he would be sailing from there to Madeira with friends, and passing close to the Selvagems. I begged a passage aboard.