After last Monday’s piece on the newer portion of Glenmaroon, County Dublin, it is worth drawing attention to one other feature of the house. Some seven years after acquiring and extending the property, in 1911 Ernest Guinness further added to it by building one of the first private swimming pools in Ireland. Designed, like the adjoining house, by Laurence Aloysius McDonnell (together with his partner in the firm, ALexander Reid), the addition which had a smoking room above, cost £5,000. The pool still survives with its original tiled interior, the curved end of windows above the deep end evocative of a bridge on one of the ocean-going yachts on which Guinness so loved to sail.