Complex sentence: Vacationing British began arriving before the railway established the Boulevard des Pyrenées, the first full 18-hole golf course in Europe-laid out in 1856-1860, and still in existence-and a real tennis court.
Split into simpler sentences: Vacationing British began arriving before the railway established the Boulevard des Pyrenées. The first full 18-hole golf course in Europe-was laid out in 1856-1860, and is still in existence-also a real tennis court.