If you are thinking of buying your first gps system but dont know where to start the pathfinder gps for walkers guide written by an expert mountain leader is sure to put you rightclive thomas is an experienced mountain guide who uses plain language to help you through the gps minefield in his excellent pathfinder gps for walkers guidein this simple to follow book he takes you through selecting your first gps system right through to getting the most from it in fact it includes everything y