What qda said.you can draw a path or create an area.also you can click the location to turn on gps.click the tracker button also.this will record everywhere u go.if it's a trail or road you can just draw a color path over it.all my roads I make yellow.borders are red.
Also use the Google China map.it will allow you to store an entire area offline so you can use this program with no cell signal.
Use the compass and turn on rotate map with compass.point the phone to where u wanna go and start walking.will take u straight to it without having to walk in circles waiting for a gps fix