Ride on the authentic steam and diesel train, tour a vintage village, and see over 60 automobiles and model railroads. Dogs are allowed everywhere, including the train and the buildings, as long as they're on a leash. Note, it will be cold, but as long as you both wrap up in coats and outerwear, it should be fine and comfortable. This is in large part because the park closes October 15th all the way to May 25th of the following year. So it's really only open for spring, summer, and the early fall, making it light coat weather. Cold, but not unbearable.
This Maine retailer sells items for cats, dogs, and humans alike. It gets five star reviews across the board, and some of the common notes about the place are that staff are friendly and welcoming, there's a great selection of items in-store, and they have a cute selection of locally made treats to choose from too. For dogs, they have food, collars, gear, grooming items, harnesses, health supplies, leashes, toys and treats. And of course, a lot of their selection is nautical in theme, so they have sea creature squeak toys, pufferfish and whale stuffed toys, crunchy cod skins (yes, cod, like the fish), and more. They even bake dog birthday cakes!