I saw this movie when I was a kid, so probably late nineties. I remember that there was a young woman who was getting ready to take her vows to be a nun, but then ends up not doing so (she falls in love I think?). I remember a scene where she jumps off a pier into a lake or river in her full nun garb, to celebrate her freedom maybe. There’s a bunch of movies about nuns so this has been hard for me to google.

Thanks!