5k = 3miles 180 odd yards
10k = 6 miles 360 odd yards
you make it sound a lot but i used to do this
http://goo.gl/maps/fdjEE 3 times a week when i was younger and fitter.
as well as doing this
http://goo.gl/maps/PYMwp there and back every day.
now i cant walk to the shops that are 150yds round the corner