WESTPORT — “Spin 4 Crohn’s and Colitis,” benefiting research and treatment for the digestive-system diseases, will take place Oct. 22 at Sherwood Island State Park.

The event, organized by the Connecticut chapter of the Crohn’s and Colitis Foundation, is set for 9 a.m. Sunday, Oct. 22, at the park. Check-in is from 9-10 a.m., with the spin-a-thon on stationary bikes from 10 a.m.-noon. to register, visit the foundation’s “Spin 4” website.

Many participants organize teams of four, and ride relay-style in 30-minute segments, with a collective fundraising goal, according to publicity for the event. But solo participants also are welcome.

Visit the Crohn’s and Colitis Foundation website for more information about the organization and its programs.