NPR Bohdanečský pond

Already in the 13th century, these places were known to be very inhospitable, as they were swamps and wetlands that were full of mosquitoes and other troublesome insects. However, thanks to the Pernštejn family, the entire area became a pond system in the 16th century (see https://pardubice.rozhlas.cz/nejslavnejsi-kanal-nepreskocite-6040044), which made up 300 ponds on the entire Pardubice estate and connected most of them...