What is the adventure in book Holes?

The adventure in the book Holes is that a group of boys are sent to a juvenile detention centre called Camp Green Lake. The camp is in a remote desert area and the boys are forced to dig holes every day. The boys are supervised by a group of guards who are cruel and abusive. The boys must find a way to survive the harsh conditions of the camp and escape.

The boys learn to work together and they form a close bond. They also learn about the history of the camp and the reasons why they are there. The boys eventually find a way to escape and they return to their homes.