Janet, you did not mention what type of foot gear you will be using. For me , I don't find gaiters useful. They normally don't help with keeping your feet dry, but do help to keep the mud and rocks out of low cut running shoes etc. some of the brands are easier to secure than others. I think outdoor research makes some trail runners out of neoprene and from the looks of them they appear to be comfortable and should be somewhat water proof. I have used gaiters for winter snow treks and they go up to my knees and keep the snow out of my boots and cross country ski shoes. Also good for break up conditions when the mud will bog a gnat on a saddle blanket. I have not needed them on any of my Spring caminos,but that is just me. If it rains hard, expect to get your feet wet, no big deal though. If you are really set on a pair of gaiters, try a few types from rei and walk in the rain for five or ten miles and see if they do what you want them to do. A good pair of shoes and merino socks will make your feet happy. This is just my take on your question,I hope it is helpful somewhat. You will have a good experience and enjoy your pilgrimage for sure. Buen camino