The Computer Algebra and Geometrical Optics project (CAGO) was the last of the three RIACA projects over 1994. Preparations for the project begun in late 1993 and already during Spring 1994, a small number of visitors was welcomed. The main part of the project, however, took place during the second half of 1994. The busiest month was November. On November 17 and 18, the CAGO workshop took place.