Don't know if you care about this but there are fenced as well a unleashed dog parks here. There is currently no dog park in Manchester but we are trying hard to get one in.
If you make a large purchase at the Kittery Trading Post, just across the bridge, such as a gun, they will not charge sales tax and will deliver it over the NH border for you. They have a driver that does nothing but run guns a couple miles down the road to NH. So you buy the gun and you meet the guy when you leave the store. Pretty cool I think.
That's cool about the guns, I didn't reallize that. And there's no doubt it's a HUGE Dog town with supersize dog run in downtown Portsmouth being next to South Mill Pond, but I've noticed many people bringing their dogs to Prescott Park to a big green open space on the water (past the pool, near the trail that leads to a Key Look Out point for the area, used during the early revolution days.)
Also, I've noticed lots of dogs running free along the beaches without Government harassing people for dogs being off leash.