Complex sentence: The children's play area is situated in front of the bowling green, it was restored in 2004 and saw the removal of many old attractions which were replaced with modern play area items and a new rubber surface replacing the old sand surface.
Split into simpler sentences: The children's play area is situated in front of the bowling green. It was restored in 2004, when many old attractions were removed and replaced with modern play-area items and a new rubber surface was installed in place of the old sand surface.