Inspired by hikers on Spain's El Camino trail, travel journalist, Maggie Espinosa was inspired to walk over 800 miles along California's El Camino Real. Over a year of hiking in 80 mile chunks, she visited every one of the 21 Missions, meeting other hikers, sharing meals with new friends and wrote up the experiences each night. The pictures and her journal entries became her book: On a Mission, an 800 mile walk to discover California's El Camino Real .