I think there are a couple of reasons. The first is that I know this is what I'm supposed to do. Ministering to children is where I belong in the church, and I'm certain of it. It's not glamorous, and there are probably more than a few people who don't consider working with children as serious ministry, but it is a whole lot of fun and a ton easier than trying to get through to tough-hided adults. We get to change the future of these children before it begins.
The second is that my family is so kind as to allow me to put the rest of life entirely on standby while I serve this one week at church. It's our family's ministry priority in the summer, and for a solid week I don't feel pulled in ten different directions.
The third is that I don't do Bible Camp in my own ability. If I did, I'd probably pull my hair out and run screaming from the building. I'm not the sharpest knife in the drawer, and there are probably lots of people who could do the job better than me. But it's better to be the person who does what he does because he trusts God in order to do it rather than the person who does what he does because he thinks he can do it alone. (I'd hate to diagram that sentence.)
So all in all, I had a very peaceful week, and I'm sad that Bible Camp is over. It's one of the most restful weeks I have all year long!