work camp

/W ER1 K K AE1 M P/
noun
  1. 1

    A camp in which volunteers visit another region and work on a project to benefit the region or its inhabitants.

  2. 2

    Any camp built for workers, such as when constructing something in a wilderness area.

Source: https://en.wiktionary.org/wiki/work%20camp, https://en.wiktionary.org/wiki/workcamp