The reality is far from this. In fact the most important space for a whippet to be truly happy is indoors with its human family, with a comfy bed of its own. There they can indulge in their favourite activity of all. Sleeping!
You could even say whippets require "heart space", as they are dogs that bond closely with their humans and like to be in close proximity to them. They are a bit like a cat, in that they choose their time for cuddles and affection. They are not overly demanding of attention, like some terriers, nor are they lap dogs. Their loyalty and gentle affection is exceptional and they are especially good around children and the elderly.
For that reason whippets needs can even be met within an apartment, so long as their human is commited to walking them at least once, preferably twice daily, along with ensuring outings to places where they can run off leash regularly.
My own whippet is happy choosing between indoors and access to a large backyard. We also walk at least once a day for a minimum of half an hour.
Whippets bodies are streamlined and designed for speed, with enormous heart lung capacity, tiny waists, long legs and very fine tails. Whippets can accelerate to reach speeds of around 60km per hour over short distances. They are the sprinters of the canine world and can even beat greyhounds over short distances!
Whippets also excell at agility and obedience training. They are a breed that enjoys challenge and stimulation, but are not generally high energy dogs, when not "working" or sprinting.
One aspect prospective whippet owners need be aware of is that whippets feel the cold. They have a very fine coat and thin skin, along with minimal body fat for insulation. Being left outside in frosty, cold climates in winter will lead to problems. It also means they can be injured through penetration by objects they bump into running at speed, and that their skin can be easily penetrated or scratched during rough play with other dogs.
My whippet wears a coat when out walking on cold and wet days. He does not wear a coat at home as he can come indoors when he wants to be warm.
The benefit of their fine coat and skin is that they are very low maintainance as far as grooming goes. They rarely exude a "doggy smell", so need bathing only for aesthetics or after a roll in mud or anything putrid. However, they will appreciate a good doggy massage and rub over with a fine brush. It is especially important to make sure their claws do not grow to the point they send their legs out of allignment by forcing their weight onto their heels. This can lead to injury, that could be avoided by a simple claw trim.
Whippets enjoy canine companionship and will bond closely with a companion dog. They generally enjoy socialising with other dogs, especially enjoying games of chasey when they get a chance. They were bred do run and hunt down rabbits and small animals and those who get the opportunity to indulge in these pursuits delight in it!