Eccleston Quarry is a mile south of Eccleston, Lancashire. It is also called Eccleston Delph and Eccy Delph. It is an old stone quarry that flooded. It is a popular site for scuba diving. Visibility is generally very poor and ropes have been strung between each underwater 'feature' to aid navigation, since traditional compass methods are all but impossible in the murky waters. Though much work has been undertaken to improve visibility in the recent past. In 2010 it has been noticed that the visibility is much improved.