i dont know how fit you are mate,but when im not hunting i jog and sprint with my dogs,off road, they love it,they get just as exited,they love it and it means you can keep them in condition all year round,i was out on a friends permission with him and his two lurchers,i brought along my 18 month old jack russel minature,six n a half hours in and the lurchers were feeling it while my little dog was still raring to go,and it'll benefit you,and its more fun running with your dogs,cos there always up for it and never LET YOU DOWN!