Peakirk Wildfowl Park was situated to the north of Peakirk. It owes its existence in part to a natural spring on the site and the building of the adjacent railway line. The spring had provided a wetland perfect for osier beds. In the 1840s the Lincolnshire Loop railway line was constructed next to the site. Gravel was extracted from the land in Peakirk for its construction. As the gravel was extracted, small islands were left behind in the main lake. This allowed the land to be used again as osier beds.
In 1957 the Wildfowl and Wetlands Trust opened a wildfowl park on the site, utilising the unique landscape features of the site. It was home to around 700 water birds, some of which were exceedingly rare or endangered. At its peak visitor numbers were around 64,000 per year.
By the late 1980s visitor numbers tailed off and the business was sold in 1990. In 1991 it was renamed the Peakirk Waterfowl Gardens whilst run by the East of England Agricultural Society, but it was not a successful business. It eventually closed in 2001, the birds being transferred to other parks. It is now a private home.