Dec. 16 1-2 p.m. in Riverview Park “Searching for Signs of Winter” nature program, participants will take a hike, enjoy hot chocolate, find out how plants and animals in Riverview Park survive the winter. The hike, will begin at the big shelter by the playground at Riverview Park. The program is free but participants are encouraged to make reservations by calling 573-221-0154 or emailing mlrichards@hannibal-mo.gov.