FOUNDER’S DAY: 10 a.m.; Mission Nombre de Dios, 27 Ocean Ave. A re-enactment of the Menéndez Landing followed by Mass at 11 a.m. More will take place at the Fountain of Youth Archaeological Park, 11 Magnolia Ave., after 1 p.m. For information, call 877-352-4478.
MENENDEZ DISCUSSION: 4:30 p.m.; Cultural Center at Ponte Vedra Beach, 50 Executive Way, Ponte Vedra Beach. $20 for members, $30 for general public. For information, go to ccpvb.org or call 904-280-0614.
OPEN GYM AT SOLOMON CALHOUN CENTER: adults 11 a.m. to 1 p.m., kids 4 to 6 p.m.; Solomon Calhoun Center, 1300 Duval St.; free. For information, call Ashley Brown at 904-209-0379 or email email@example.com.