Unless it is a very small city, you should be able to find several spring break camps through google. Typically, camps are organized by:
1. YMCA
2. Cities/ Community centers
3. Museums, science centers, drama/theaters, zoos, botanical gardens...
4. Child care facilities may have arrangements to keep school age kids for daily fees
5. Churches and similar christian organizations (they do teach bible, be aware)

If your child's class has a facebook group of parents, you can ask where other kids are going for the breaks. Kids feel comfortable with the kids they already know. Good luck!