Add a beautiful 4.5-hectare botanical garden, a classic wooden Italian boat and enough beds to sleep 20 and you have everything you need for a big family vacation. Not sold yet? Then drink in this scene: “To arrive on the private docks of the estate and walk up the steps to enjoy the marvellous panorama of the majestic Lake Como is the recipe for a dream-like and well-deserved retreat,” reads the welcome mat posted online by Retreats, the recently launched luxury vacation rentals department of Italy Sotheby’s International Realty.