It's interesting to explore different belief systems. An outing to Oswaldkapelle is a great way to learn about one of the local religions.
You'll soon discover why this Deggendorf house of prayer is popular with travelers. If you're looking for more to do and see here, Egg Castle, Basilika Niederalteich, and Maria Himmelfahrt are in the area as well. They won't take you long to reach from Oswaldkapelle.