SAN MARCOS
SONIC Drive-In
1215 Grand Ave., San Marcos, CA 92078
(760) 591-0025
HOURS
Monday - Thursday: 10:00am - 12:00am
Friday - 10:00am - 1:00am
Saturday - 9:00am - 1:00am
Sunday: 9:00am - 12:00am
HAPPY HOUR
Half-price drinks and slushes, every day from 2:00pm - 4:00pm!
