Weekend Retreat: Mary and Joseph Retreat Center hosts a 12-Step Weekend Retreat led by John McAndrew at 5300 Crest Road in Rancho Palos Verdes. 7 p.m.; Sunday, 1:30 p.m. $245 per person/shared room; $340 single room. Information, 310-377-4867
Advent Day of Prayer: Mary and Joseph Retreat Center presents “Advent Day of Prayer: Rediscover and Celebrate the Gift of the Advent Season” led by Edith Prendergast at 5300 Crest Road in Rancho Palos Verdes. 9 a.m.-3 p.m. $50. Information, 310-377-4867
Christmas Concert: The Palos Verdes Regional Symphony Orchestra presents its annual Christmas Concert at the Church of Jesus Christ of Latter-day Saints, 5845 Crestridge Road in Rancho Palos Verdes. 7:30 p.m. Free. Information, 310-750-6844
First Saturday Hike: Join the Palos Verdes Peninsula Land Conservancy for a First Saturday Hike at George F Canyon Nature Preserve, 27305 Palos Verdes Drive East in Rolling Hills Estates. 9 a.m. Free. RSVP at pvplc.org.
Holiday Choral: The El Camino College Chorale, Concert Chorus and Mixed Chorus present “Holiday Choral Extravaganza III” at Marsee Auditorium, 16007 Crenshaw Blvd. in Torrance. 8 p.m. $10. Information and tickets, elcamino.edu/centerforthearts.
Parade of Lights: The City of Rolling Hills Estates presents its annual Palos Verdes Peninsula Holiday Parade of Lights at the Promenade on the Peninsula Mall, 550 Deep Valley Drive in Rolling Hills Estates. 6-7 p.m. Free. Information, 213-663-6619
Social Security: Palos Verdes Library District presents Savvy Social Security Strategies seminar at the Peninsula Center Library Community Room, 701 Silver Spur Road in Rolling Hills Estates. 10 a.m. Free. Information, 310-921-7519
Dementia Workshop: Palos Verdes Library District, in conjunction with Silverado Care, will hold a Dementia Friendly workshop at the Malaga Cove Library, 2400 Via Campesina in Palos Verdes Estates. 10-11 a.m. Free. Information, 310-377-9584, Ext. 210
Caroling, Caroling: The South Bay Children’s Choir presents “Holidays in Harmony: Caroling, Caroling” at Marsee Auditorium, 16007 Crenshaw Blvd. in Torrance. 4 p.m. $7-$15. Information and tickets, elcamino.edu/centerforthearts
Holiday Concert: The Peninsula Symphonic Winds presents its Winter Holiday Concert at Loth Rolling Hills Covenant Church Community Center, 735 Silver Spur Road in Rolling Hills Estates. 3 p.m. $10. Children 12 and under are free. Information, 310-200-5482
Tea and Carols: Mary and Joseph Retreat Center hosts Victorian Christmas Tea and Carols at 5300 Crest Road in Rancho Palos Verdes. Tea, 2 p.m.; concert, 3 p.m. $25. Children 4-12, $18; children under 4, free. Information, 310-377-4867
Art, Science, Medicine: The Peninsula Seniors host Michael R. Yeaman who will give an academic presentation about music and performance to illustrate the intersection of art, science and music at Hesse Park, 29301 Hawthorne Blvd. in Rancho Palos Verdes. Information, 310-377-3003 – Robert Doss