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Sitting in the shadow of Alexandra Palace, this former British Rail laboratory has been transformed into a beautiful and sophisticated gym. There is an underground swimming pool as well as an exercise room with the most up-to-date strength and cardio equipment which faces out on to pretty tree-lined views. There is also a well-spaced weights room and functional zone, beauty and holistic treatment rooms and a poolside day spa and relaxation area with dedicated manicure and pedicure spaces. There's also a wide range of yoga classes on offer.