Nowadays, BPMN is a de-facto standard for modeling multiple participants processes as collaboration diagrams. BPMN collaboration can be heavily influenced by the physical environment in which the involved participants act. Indeed, they can occupy a position, move in the space, make decisions according to the environment’s status, and change it. However, BPMN lacks support for integrating the environment. To overcome this limitation, we present BEAR, a tool for modeling and animating together a BPMN collaboration and its environment in the form of a place graph. BEAR supports designers in precisely understanding the interplay between BPMN collaborations and the environment.