Clearpath Robotics has developed an accurate GPS navigation system that enables autonomous robots to move in outdoor environments. However, to move toward a target location and avoid obstacles along the path, a path planner is required. The objective of this project is to develop, tune and modify an efficient path planner for the robot in order to make it capable of moving in outdoor environments, then, the performance of the path planner and GPS navigation system will be checked by extensive real-world experiments.