I watched this movie a while ago. I am pretty sure it was from the 2000’s. The movie starts off with a kid saying them and their friends learn magic but not like card tricks, real magic. I think the guy teaching them the magic goes missing or dies and the kids go on an adventure to try and find the guy or something. One part I remember was the kids were in a cave and there was a small pool of water. They jump into the water and then land on solid ground with a thin layer of water above them. At the end the kids have to give up magic to save the teacher guy. Please if you know it help because I really want to know what it is.