The new VIET HOA BAR, a 150 square meter paean to what is probably best described as "garden tatami", is causing feverish excitement among the city's well-heeled fashion-lovers. Patrons are beside themselves with joy at the thought of finally being able to lounge on the grass bare-footed on the bar's sunken hearth in the floor of the bar centre lounge area - all without first having to find the nearest park (or being rain on in London's rainy weather).Londoners who are familiar with Japan, the use of tatami flooring has influenced the development of tea ceremony. For instance, when walking on tatami it is customary to shuffle, to avoid causing disturbance. Shuffling forces one to slow down, to maintain erect posture, and to walk quietly, and helps one to maintain balance as the combination of tabi and tatami makes for a slippery surface. At VIET HOA BAR's garden tatami, the sunken hearth in the floor maintains all of the tatami's Zen characteristics but made with purpose-built grass resilient for any hard-hitting club-goer.There are dozens of real and imaginary lines that crisscross the bar's garden tatami. These are used to determine the exact placement of legless chairs and individual tables - where the joins serve as a demarcation indicating where people should sit, recline or lounge.Interior view of the bar houses a moss wall across the entire 15 meter-length of the establishment and a customary hanging scroll, flower arrangement and light bulb installation resembling a flying bird.