What I have found most fun about my GPS
is measuring speed. How fast does your horse walk, 'working trot',
canter? You'd be surprised; I think most horses walk about 3mph, same as a
person. Also mine has a feature (I have an old Garmin), I think called
elapsed speed, where it will measure your top speed. Now talk about FUN,
stick it in your fanny pack, "trot like the wind" and see how fast you really
went!