This is a beautiful little walk, it is dog friendly and has many nice cafes nearby in Copacabana. The waves at the beach here quite large. This is flat and good for beginners.
Start, near Del Monte Place: -33.49145514808067, 151.43031120300293 Google Maps Link
Walk to the end of the dog area which lines up with the end of Tudibaring Parade: -33.49757502679706, 151.42567634582522 Google Maps Link