The controlled temperature, lighting and sanitation of a pool are gone, and there are usually no landmarks for orientation or comfort.

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Now community company Harlech and Ardudwy Leisure, which runs the pool, has gone a step further with the wall and a refurbished cafe.

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The two-floor, 22, 000-square-foot space may be situated in the heart of stuffy and conservative Fifth Avenue, but the spa is daring to go where few, if any, have gone before: A Watsu pool (for underwater shiatsu massage) and a penthouse roof garden for outdoor massages in good weather are two of Cornelia's unique offerings.

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