The dog in this video is taking herself for a walk. No one is walking beside her. The amusing thing is: she is carrying her own leash in her mouth. The people on the sidewalk are chatting among themselves in amazement. This dog stops to look at them, then keeps right on walking. She knows exactly where she is going.
Her owner must take her on this path regularly, so she knows her way. It is so familiar that she can go for a walk by herself. I remember watching a video where a Golden Retriever goes shopping by herself, carries a basket in her mouth, picks out the snack she likes, and goes to the cashier. When dogs are trained, they can do what we consider extraordinary things.
Enjoy watching this independent dog taking herself for a leisurely stroll down the waterfront.