Westbrook is hosting three separate opportunities to exercise for good causes Saturday, May 16.

Two of the events start at Riverbank Park. First, at 9 a.m., is Kippie’s 5K Run-Walk, a fundraiser for the nonprofit Casa Inc. The event will celebrate the life of Kippie Rogers, a Westbrook native who died last year. It will raise funds for Casa, which has worked with adults and children with mental illness and disabilities since 1979.

The parents of Kippie Rogers, Celena and Peter Moreau, organized the event to honor their son while giving back to Casa. Rogers was a resident of Casa homes for 28 years.

Casa Executive Director Anne Walp said Monday the event will be a “walk, run and wheel,” involving many Casa community members and former friends and neighbors of Rogers’. The family hopes it will become an annual event.

“A lot of people we serve are not able to run,” Walp said, adding that she’s glad that many of Rogers’ friends will participate.

The 5K comes with a registration fee of $15, which includes a T-shirt. First- and second-place finishers will receive cash prizes. The 5K will occur rain or shine. Pre-registration is still available online at www.runsignup.com.

Walp said Maria Dorn, Westbrook’s director of community services, has been “extremely helpful” is laying out the event.

“We’re hoping for the best for the first year,” Celena Moreau said. “It’s been a collaborative effort.”

Also in Riverbank Park Saturday will be an awareness walk called “Stepping Out to Cure Scleroderma.” The walk, from 10 a.m.-2 p.m., will raise funds and awareness of scleroderma, an autoimmune disease with roughly 300,000 diagnosed patients in the country. The disease causes the immune system to attack its own tissues.

Sandy Lunner, who is chairing the annual fundraiser, said Monday that while there are some treatments to slow progression and alleviate symptoms, there is no cure. Past fundraisers have been held in Portland.

Lunner said because the disease can attack any organ, tissue or the entire vascular system, it can appear to be many different diseases, which causes misdiagnosis. Money raised will go to the Scleroderma Foundation. Registration begins at 10 a.m., with the walk starting at noon.

Beginning at Sunset Ridge Golf Links Saturday will be the Heroes of Humanity “Mayday Mission,” a competitive treasure hunt that sends teams and individuals running, biking and more to win silver or gold coins that could be up to $1,000.

Based in Portland and Boulder, Colo., Heroes of Humanity takes the first-prize purse and matches the team’s winnings with a gift to a local nonprofit. The nonprofit affiliates for this weekend’s event are the United Way of Greater Portland, SailMaine, the Treehouse Institute and Lift360.

Aaron Frederick, a managing partner with Heroes of Humanity, said Monday that participant check-in begins at 9 a.m. Saturday, with the race scheduled for an 11 a.m. start time. Teams will have three hours to hit as many “gates” as possible, which gives you a passport stamp. Teams will receive a course map two hours prior to the course opening, and will have to strategize before and during the race.

According to the website, top prizes go to “solo racers or teams with the most passport stamps achieved in three hours.”

Frederick said the inspiration for the event “was to try and do something fun as soon as the weather warmed up.” Heroes of Humanity has a larger event planned for Portland in July.

Participating solo or as a member of a team costs $75, while team captains pay $45. For more information, go to www.weareheroesnow.com.