Kersko, Nature park in Nymburk District, Czech Republic.

Kersko is a nature park in Nymburk District featuring forests, wetlands, and open grasslands arranged across its territory. The different landscape types work together to support a wide range of plant and animal life throughout the seasons.

Protection began in 1986 as the Kersko Quiet Zone, and since 1990 the area has been designated a nature park. The current boundaries were set by a regulation of the Central Bohemian Regional Council in March 2010.

The western part of Kersko Forest holds a large recreational cottage settlement, Kersko, with the mineral spring of St. Joseph. The writer Bohumil Hrabal lived and worked here, and his book Slavnosti sněženek is set in the settlement.

Walking is the best way to explore the park, with trails of varying length suited to different abilities. Wear sturdy footwear and bring weather-appropriate clothing, as wet areas can make sections muddy depending on the season.

At the northern edge of the park near Hradištko stands a stone that some researchers consider a prehistoric menhir. The park also contains Kerské rybníčky, a European important site protecting the great crested newt.