Good morning, Oceanside.

Pro surfer and scientist Cliff Kapono launches a global effort through Mega Lab to map 1 million coral reefs by 2030, inviting local surfers to help record reef health (an initiative reaching beyond Oceanside).

KSON Country Christmas

7-8:30 p.m. — Frontwave Arena — Ticket prices vary — Enjoy performances from rising country stars at this festive holiday concert.

Coastal Christmas Holiday Lights Spectacular

4-9 p.m. — Del Mar Fairgrounds — Ticketed entry — Experience a seaside holiday wonderland with dazzling lights, skating, and festive fun for the whole family.

Coastal Christmas Holiday Lights Spectacular

11:59 p.m. - 1:29 a.m. — Del Mar Fairgrounds — Ticket prices vary — Experience a magical seaside holiday wonderland with festive lights and family fun.

A Charlie Brown Christmas 5K/10K

7 a.m. – 11:59 p.m. — Kit Carson Park — $42.95 - $64.95 — Celebrate the 60th anniversary of 'A Charlie Brown Christmas' with family-friendly runs and festive swag.

Cash'd Out: Tribute to Johnny Cash

8-10 p.m. — Belly Up Tavern — Tickets vary — Enjoy an authentic night of Johnny Cash classics performed by Cash'd Out.

Coastal Christmas Del Mar

3:59-7:59 p.m. — Del Mar Fairgrounds — Tickets available — Experience holiday magic by the California coast with festive lights and activities for the whole family.

Downtown Encinitas Pack Walk

9-11 a.m. — Cottonwood Creek Park — Free entry — Explore downtown Encinitas on a flat walk past boutique shops and the Moonlight Beach area.