Where/When: , 31495 El Camino Real; Noon Sunday
Why go: The highlight of the celebration is the spectacular Casa de Calaveras, life-sized skeleton figures that tell the story of a deceased couple who return to earth each year on the Day of the Dead.
Pricing: Free
Where/When: , 31831 Los Rios St.; Varying times Saturday
Pricing: $5 donation
Where/When: Rancho Mission Viejo; 9 a.m. Saturday
Why go: Find out what insects and arthropods are creeping, crawling and flying around the Richard & Donna O'Neill Conservancy
Pricing: $10 for adults, $5 for children ages 6 to 18, free for members
ECTOBERFEST
Where/When: The Ecology Center, 32701 Alipaz St.; 3 p.m. Saturday
Why go: Taste a collection of New Belgium Brewing's finest beers with a pairing of pretzels and mustard from the SideDoor
Pricing: $15 for Members, $25 for non-members