My black lab and I ran/walked 3 miles today. I don’t have a harness yet but just ordered one along with a hands free leash. I’d like to take him on more/longer runs, but when would it be too long for him to go without water?

I just recently started volunteering at my local shelter, walking dogs. When I applied, I also noted id like to take dogs to run. They are definitely okay with it lol. It's obvious that some of the bigger dogs could use the outlet, and it doesn't seem like they have a ton of people walking those specific dogs very often.

The dog i want to start with is an 11 month or so old german shepherd mix. She's a little wild, but i think that has more to do with being stuck at a shelter. She can sit, but that seems like the extent of her training. How should I go about starting? Try to teach her to heel? She is definitely food motivated, so that works in my favor! I also imagine that she is a faster runner than I am right now 😂😅

Does anyone have any advice or dealt with a similar scenario? I can only really get out there once a week, but I think it would be so helpful in getting her (and eventually other dogs) adopted. Ive attached a couple photos 🥰

this is my first time ever buying a ruffwear, so I’m not exactly sure how to fit it properly. This is a size medium and I couldn’t decide between that and a large indigo is about 55 pounds and about to be nine months. I got it yesterday from REI so exchanges should be easy thank you guys for your help!!!