Any family man dreams of having his own corner where he can go about his business, or relax undisturbed by anyone. Hunting and fishing do not bring pleasure to everyone. A small bar where a man can be with friends without looking away from home will help him show his personal imagination. By the way, you can equip a place to relax based on your preferences on your own land plot.
You can adapt any old building on the site for a bar, a place to relax. It will cost much less than building a new barbecue shed. The appearance in the old rural style will only give the necessary exoticism to the urban dweller.
You can hang glazed double-leaf doors on the entrance opening of the old barn, and make a terrace of boards in front of the entrance. Assemble a bar counter from the boards, on which you can place a portable refrigerator and utensils. Put a sofa inside the room and several chairs and a table outside. You can also order a ready-made wooden garden pub together with man cave furniture in the UK.
The size of the room does not play an important role; the bar can be equipped from a small utility shed. You can cut an opening with a folding door in the front wall, and place bar stools in front of it. You can order something like mancave seating for comfort.
A larger-scale reconstruction of the interior of the old barn will create a real home office capable of receiving a sufficient number of guests. You can gather with old friends, drink beer, and remember past heroic deeds. Such a room can also be used as a guest house. The interior is just complemented by a soft and a TV set.
Examples above rather serve for inspiration. The design of a place to relax depends entirely on your creative imagination.