The Williams-Wynn family was a large landowner in North and Mid Wales for many centuries, and the family seat was at Wynnstay, Ruabon. The current hall grounds are grade one listed and created by Capability Brown, while the current lake and stone boathouse were constructed by Richard Woods around 230 years ago.

The current 10-acre Wynnstay lake was dug out by hand and coated with native Ruabon clay. It was constructed from a prior canal. It had two islands at first, but was reduced to one during a dredging operation in the 1960s. The fish stocks would have played an essential role in estate life 200 years ago, despite the fact that it was planned as a decorative lake. Providing a vital food supply, particularly on Fridays.

The lake and fishing have a significant connection to the current day, but not as a food source. However, for expert fisherman, they specialise on huge carp. The clay liner and average depth of six feet guarantee a lot of warm water during the summer, creating the ideal environment for growing enormous fish fast.

Wynnstay fishing and conservation company purchased the lake and adjacent woods in April 2007. However, it was closed to fishermen for two years as repairs were made to the banks, the 'Grand Avenue,' and many of the elder trees. To fulfil the company's aim of "creating one of the greatest carp fisheries in the United Kingdom,"

A re-opening in the spring of 2009 was made possible by further stocking of common, mirror, and leather carp to complement existing older populations. And it was a huge hit right away.