Playing in the snow
My grandparents were Australian shepherd breeders, so I grew up with the breed, and I have walked and groomed and cared for several. The one in this example, Kola, a 14 year old, was very energetic, despite her age, and loved to walk, and play tug of war, and to steal your stuff so you would chase her, even though she was mostly blind and deaf. She was very clever, as most aussie's are, and liked to be kept busy. I talked to her while I was walking her, and she would talk back. She was easy to train as well, and caught on to new tricks quickly. You could easily motivate her to do almost anything, if it was new and interesting, or with a treat if it wasn't. As her other senses went, she became mostly interested in exploring things she could smell, and loved to be taken to the beach, where she could run in the surf, and sniff everything that got washed up. And she LOVED to swim.
She was always very friendly with other people, other dogs, and even cats, but would occasionally try to herd groups of things, like birds or small children. However, she was never aggressive at all, just maybe a little bossy.
As for grooming, Australian Shepherds have chaps in the back, and they pick up all manner of junk when they are out exploring. She had to be brushed very frequently, every day if she was out hiking or adventuring, every week otherwise. However, she loved to be brushed, so it was easy to groom her. A shedding comb is useful for this breed, to strip out the undercoat they build up during the winter, if you live somewhere warmer and they don't shed it all out by summer.
Kola was always eager to have her leash put on and go somewhere, anywhere, for an adventure, and had plenty of stamina for long walks, even as she got older. Australian shepherd, above all, need to be kept busy, and given a job to do, or they will invent something, and it probably won't be something you like! My best advice is long daily walks to the dog park, and some time to play off leash outdoors.