SOUTH BEND, Ind. -- The Indiana Department of Natural Resources will be holding "challengers" across five 100-year-old state parks this summer in celebration of 2025 being the 100 year anniversary of Indiana Dunes and Pokagon State Parks.

DNR officials say the Centennial Challenges kick off the celebration that will take place across five state parks that, for 100 years, "have provided northern Indiana with natural playgrounds and conservation of unique natural resources."

“We have challenges at many parks that provide opportunities for physical activity through hiking, kayaking, or canoeing,” said Ginger Murphy, deputy director for stewardship for Indiana State Parks.

“We are happy to add these opportunities for Hoosiers to open a window into some of the people and places who helped to shape our state’s history.”

Parks with Centennial Challenges include McCormick’s Creek State Park (est. 1916), Turkey Run State Park (est. 1916), Clifty Falls State Park (est. 1920), Pokagon State Park (est. 1925), and Indiana Dunes State Park (est. 1925).

"Each challenge explores the history of the respective park’s natural resources, pre-park establishment, and important historical structures and stories," a DNR spokesperson said.

"Guests who complete a challenge earn a unique sticker for that park."

The instructions for each challenge can be found on the DNR's website.