Geometry or Art camp?

So I found out that the geometry course I'm taking intersects with my art camp. My art camp starts the 24 and the geometry ends the 28 so I'm stuck. I can't take the test early or miss three days. I really want to take and finish geometry but i really really love this camp, i've been there before, had such a wonderful experience. So I don't know what to do and I'm getting very upset. can you guys give me advice on how to solve the situation? Or how I can decide?