Thanks for all your comments about bathing, and Wallyranger for the notes on the spots he knows about. I shall mark them in my guide book.
Dawn: Bra and pants will be fine, or less if nobody is around. But as a plump 61 year-old with a balance problem I cannot make a quick run for cover. Sil also suggests bikini type underwear to wear at all times. Wish I had my 20's figure back again. Am I being too optimistic thinking I will tone up all the flab? Maybe if I get to walk the 816 klms. from Somport to Santiago de Compostella. Here's hoping!
And Magnara: If ever you are walking near Tiermes on N.240 nr. Monasterio de Leire in the winter, if there has been a dry summer the Roman Baths appear again on the edge of the Pantano de Yesa, when the level of the dam drops. Theyre are hot sulphur springs and people bath there, sometimes nude, maybe surrounded by snow covered land! Amazing. Went there once but in company of my non-bathing, conservative Spanish family. Had to behave myself. Pity.