The CT Challenge, the Fairfield nonprofit organization that provides services for cancer survivors, will mark National Cancer Survivor Day with a series of fitness activities on Saturday, June 21. Free activities are planned from 8 a.m. to 1 p.m. at CT Challenge's 250 Pequot Ave. Survivorship Center. They range from an outdoor walk to bicycle rides for different levels of fitness, to a yoga class to strength training.

For a detailed schedule of Cancer Survivor Day activities, visit