Complex sentence: Woodhall Spa lies at the south western edge of the Central Lincolnshire Vale, between the Rivers Witham and Bain, and was once extensive heathland with a light fluvial sandy soil.
Split into simpler sentences: Woodhall Spa lies at the south western edge of the Central Lincolnshire Vale, between the Rivers Witham and Bain. Much of the land on which the village is built was once extensive heathland with a light fluvial sandy soil.