If walking a dog what would you prefer using?

My preference is to go somewhere remote where they can just run around. When I go fishing, my dog (the 90 pound lab) will just play along the bank of the river while I’m in there catching dinner. He always gets some as a treat later, because I’ll bake the skins and also add some of the meat to his dinner. I haven’t been able to fish this year, so next year, I’m hoping to get back out there with the big guy.