Parents in Recovery, facilitated by Aroostook Recovery Center of Hope, 36 North St., 11 a.m. FMI: 207-254-2213.

Tai Chi in the Park, hosted by PI Rec, 10:30-11:30 a.m. at Mantle Lake Park. Free drop-in sessions, for anyone 55 and up. Rain location: Riverside Park Pavilion. FMI: 764-2545.

Food preservation webinar: presure canning soups and stocks, 2-2:45 p.m., by UMaine Cooperative Extension. Registration required; $5 donation per session optional. FMI: extension.umaine.edu/food-health/food-preservation/food-preservation-webinar-series.

Girl Scouts new member signup event, for girls in grades K-3 and parents/caregivers, 6 p.m. at . Come see if Girl Scouting is right for you.

Red Cross blood drive . Download Red Cross Blood Donor app, visit redcrossblood.org or call 1 (800) RED CROSS for an appointment or more information.