Free Museum Admission and Family Activity Days,  Countywide – Multiple days throughout the month, days vary by museum. www.freemuseumday.org
Tuesdays
Hotel Del Walking Tour, Coronado – 10:30 am. Docent-led walking tour. Res. req’d. 619-437-8788
Tues Nite Out (5-8pm), Hillcrest – Discount dining. www.fabuloushillcrest.com
Wednesdays
Coronado Heritage Walk, Coronado – Docent-led walking tour. Res. req’d. 619-437-8788
Cajon Classic Cruise, El Cajon – 5-8 pm. Classic car show. www.downtownelcajon.com (April – Oct)
Thursdays
TNT (Thursday Night Thing), Balboa Park – Street art, music, activities. www.mcasd.org
Family Fun Nights, San Diego Botanic Garden, Encinitas – www.sdbgarden.org (June – Aug)
Fridays
Hotel Del Walking Tour, Coronado – 10:30 am. Docent-led walking tour. Res. req’d. 619.437.8788
Friday Live Music Nights, Del Mar Plaza – Free live entertainment. www.delmarplaza.com
The Dinner Detective, Downtown –  Murder mystery dinner show.  www.thedinnerdetective.com
Cruisin’ Grand, Downtown Escondido – Car cruise &  fair. www.downtownescondido.com (May – Oct)
Concerts on the Green, Downtown El Cajon – 6-8pm. www.downtownelcajon.com (May – Sept)
Sights & Sips Sunset Cruises, Hornblower Cruises, Embarcadero – www.hornblower.com (May – Oct)
Saturdays
Free Fishing Class, Lake Cuyamaca, Julian – 10-11 am. www.lakecuyamaca.org
Hotel Del Walking Tour, Coronado – 2 pm. Docent-led walking tour. Res. req’d. 619.437.8788
The Dinner Detective, Downtown –  Murder mystery dinner show.  www.thedinnerdetective.com
Saturday Garden Tour, The Water Conservation Garden, El Cajon – Seminars. www.thegarden.org
Family Science Day  (1-3pm), Fleet Science Center, Balboa Park – www.rhfleet.org
Sights & Sips Sunset Cruises, Hornblower Cruises, Embarcadero – www.hornblower.com (May – Oct)
Sundays
Wacky Science Sundays, Natural History Museum, Balboa Park – www.sdnhm.org
Hotel Del Walking Tour, Coronado – 2 pm. Docent-led walking tour. Res. req’d. 619.437.8788
Champagne Brunch Cruise, Hornblower Cruises, Embarcadero – www.hornblower.com  (May – Nov)
Sunday Pipe Organ Concert, Spreckels Pavilion, Balboa Park – www.osorgan.com
Sunday Live Music Nights, Del Mar Plaza  – Free entertainment. www.delmarplaza.com
Through July 9
Chinese Brush Painting Exhibit, San Diego Botanic Garden, Encinitas – www.sdbgarden.org
Through August 31
“Black Holes” Digital Show, Fleet Science Center, Balboa Park – www.rhfleet.org
Through September 9
Titanic: The Artifact Exhibition, Natural History Museum, Balboa Park – www.sdnhm.org
Through January 1, 2013
GROSSOLOGY: The Impolite Science of the Human Body, Fleet Science Center, Balboa Park – www.rhfleet.org
June 1
First Friday (5-9pm), El Cajon – Multi-cultural activities. www.downtownelcajon.com
June 1-3
PENUMBRA: An Ode to Oceanside in a Time of War, Oceanside Museum of Art – www.oma-online.org
June 1 through January 20, 2013
The Horse, and Vavras Vision: Equine Images, Natural History Museum, Balboa Park -www.sdnhm.org
June 2
Rock n’ Roll Marathon – 40+ bands, 26 stages, post-race concert. www.rnrmarathon.com
Downtown Bus Tour  (10-11:30am) – Free parking for tour at Horton Plaza. www.ccdc.com
Encinitas Rotary Wine Festival (5pm), SD Botanic Garden, Encinitas – www.encinitaswinefestival.com
June 2-3
Fiesta del Sol, Solana Beach – Street fair, live music,  kid’s zone. www.solanabeachchamber.com
Wings Over Gillespie (9-4), Gillespie Field, El Cajon –  Airshow and festival. www.ag1caf.org
June 3
Strings in the Garden (4-7pm), San Diego Botanic Garden, Encinitas – Children’s recital. www.sdbgarden.org
June 3 through September 30
Summer Shakespeare Festival, Old Globe Theatre, Balboa Park – Three dynamic outdoor productions. www.oldglobe.org
June 4
Senior Monday Lecture “Changing How We Diagnose Alzheimer’s” & IMAX Film “The Human Body”, Fleet Science Center, Balboa Park – rhfleet.org
Full Moon Dinner Cruise, Hornblower Cruises, Embarcadero – www.hornblower.com
Taste of La Mesa (5-8pm) www.lamesachamber.net
June 6
Grunion Run (10:45pm), Birch Aquarium at Scripps La Jolla – Res. req’d. www.aquarium.ucsd.edu
“The Sky Tonight“ Planetarium Shows, Fleet Science Center, Balboa Park – www.rhfleet.org
June 8 – July 4
San Diego County Fair, Del Mar – www.sdfair.com
June 9
Saturday Science Club for Girls “Ooey, Gooey & Gross” Fleet Science Center, Balboa Park – www.rhfleet.org
2nd Saturday Art Walk, Downtown Escondido –  www.downtownescondido.com
June 9
Family Day, San Diego Archaeological Center, Escondido –  www.sandiegoarchaeology.org
Asian Pacific Historic District Walking Tour, Chinese Historical Museum, Downtown – www.sdchm.org
June 9-10
KidsFest, Liberty Station, Pt. Loma  – Interactive family festival. www.kidsfestsandiego.com
Annual Inter-Tribal Pow-Wow, Mission San Luis Rey, Oceanside – FREE. www.slrmissionindians.org
Julian Gold Rush Days  – Festival. www.julianca.com
June 10
Encinitas Environment Day (10-4), Cottonwood Creek Park – Free. Outdoor festival. www.eeday.org
June 14
Nature & Me Preschool Storytime, Natural History Museum, Balboa Park – 10:30am, www.sdnhm.org
June 16
SEA Days “Boundless Energy” (11am), Birch Aquarium, La Jolla – www.aquarium.ucsd.edu
June 17 – FATHER’S DAY
Brats & Beers on the Bay, Maritime Museum –  Sail with Dad on the Californian. www.sdmaritime.org
Father’s Day Country Jam, Menghini Winery, Julian – BBQ, live entertainment. www.julianca.com
IMAX® En Espanol  “To The Arctic,” Fleet Science Center, Balboa Park – rhfleet.org
Family Drop-In Day, Museum of Art, Balboa Park –  Free w/admission. Kid’s activities http://www.sdmart.org/programs-events/family-programs
June 18
History for Half Pints “Summer Jam-berry!” (10-11am), SD History Center, Balboa Park – www.sandiegohistory.org
June 21
Rods  & Woodies Classic Car Night (5:30-7:30pm), Downtown Encinitas – www.encinitas101.com
Summer Solstice Celebration (5-8pm), Del Mar – 858-755-1179, www.delmarmainstreet.com
June 22
Movies By The Lake “Happy Feet 2”, Santee Lakes –  Outdoor family film screening.. santeelakes.com
June 23
Fairy Festival (10-1:30), San Diego Botanic Garden, Encinitas – www.sdbgarden.
Street Fair and Chili Cookoff, Ocean Beach –  Free. Live music, art. www.oceanbeachsandiego.com
June 23-24
La Jolla Festival of the Arts, UCSD East Campus – 9am–5pm. www.lajollaartfestival.org
Scottish Highland Games, Brengle Terrace Park, Vista – www.sdhighlandgames.org
June 24
Taste of  Adams Avenue, Kensington/Normal Hts. – www.adamsavenuebusiness.com
June 29
Ghost Hunting Tour (10:30pm), The Whaley House, Old Town – 90 minute tour. www.sohosandiego.org
June 29 through July 1
Pacific Lacrosse Festival – Del Norte HS & Rancho Bernardo HS, www.pacificlacrossefestival.com