Are there tearoom stops to keep warm? Always a good idea, as one of the buggers will want feeding pretty much all the time.
We had a moby wrap sling at that age, which holds the baby very close and supports them very well, and we took her on a few walks (we live in Derbyshire), although I'm not sure if we got as far as a 3 hour walk (10 miles or so?). We probably did walks that took 3 hours, but only thanks to tearoom stops - were probably 5 miles or so mostly!
Now, we have a Connecta Integra, which is a bit more like a baby bjorn, and is great now she is bigger and likes to look around a lot. I wouldn't be so happy going over stiles or walking in slippery mud if she didn't have good head control though.
I've done dozens of 5 milish walks with the baby in the sling now - sometimes she decides she won't nap in the house, so I take her for a walk over the hills.
Now it is quite muddy, depending on where you're walking / how steep & rocky it is, poles might be useful, just to give you a bit more confidence when carrying the baby - certainly some walks round ours (other side of Derbyshire) where I'd like them.
Also, in related stuff, you might be interested to know, you are close to kiddy bike trailer age (with baby insert) - ours says gentle cycling from 12 weeks.
Joe
