It's fascinating to look into different belief systems. An outing to Notre-Dame de Croaz Batz is a wonderful way to appreciate a part of the local way of life.
You're spoiled for sightseeing choice when staying in Roscoff. Notre-Dame de Croaz Batz is an ideal place to kick off here, but there are plenty of other fine spots to appreciate. St-Pol-de-Leon Cathedral, Île Callot, and Carantec Golf Course are near the house of prayer and and will cap off your day nicely.