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Saturday, April 27

SF’s Official Flower: Spring 2024 “Dahlia” Sale: (Golden Gate Park)
Saturday, April 27 – All Day | Cost: FREE | Hall of Flowers (GG Park)
SF's Official Flower: Spring 2024 "Dahlia" Sale: (Golden Gate Park)
Dahlia Tuber Sale! 4/27 9:30am- until sold out. Come to the SF County Fair Building for our in person tuber and cutting sale for amazing selection, deals, and steals. Our cutting team has produced over 1,000 plants for your gardens! we feature many show worthy ...
WildCare’s Family Nature Day (Tiburon)
Saturday, April 27 – 10:00 am - Ends at 2:00 pm | Cost: FREE*
*Free for all, all day long!
| Richardson Bay Audubon Center & Sanctuary
WildCare's Family Nature Day (Tiburon)
FREE FAMILY EVENT! Saturday, April 27, 2024 from 10 am – 2 pm at Richardson Bay Audubon Center and Sanctuary in Tiburon.  Learn about our local wildlife “Mrs. T-style!” Go on a naturalist-led hike, create a wildlife themed craft, take the scavenger hunt challenge, use spotting ...

Berkeley Bay Festival w/ Free Boat Rides (2024)
Saturday, April 27 – 11:00 am - Ends at 4:00 pm | Cost: FREE | Shorebird Park Nature Center
Berkeley Bay Festival w/ Free Boat Rides (2024)
Celebrate the San Francisco Bay at the Berkeley Marina. Connect with the Bay and our local community through live music, performers, food, hands-on educational activities, and free boat rides. This free, family-focused event celebrates the Bay, its local wildlife, and the people and agencies dedicated to its ...
SF’s Free Outdoor Screen-Printing Pop-up at Heron’s Head Park (2024)
Saturday, April 27 – 11:00 am - Ends at 4:00 pm | Cost: FREE*
*Event is free to attend, and prints are free! A suggested donation of $25 supports San Francisco parks and public spaces.
| EcoCenter at Heron's Head Park
SF's Free Outdoor Screen-Printing Pop-up at Heron's Head Park (2024)

‘Heart Your Parks’ Screenprinting Pop-Ups Return To Raise Funds For San Francisco Parks  The popular art giveaway events are returning for the second year to celebrate city parks and raise $50,000 to support these spaces. DATE UPDATE – Due to weather, the screenprinting pop-ups return ...

SF’s “Earth Day on the Green” w/ Farm Tours & Mini Plant Sale (2024)
Saturday, April 27 – 11:00 am - Ends at 3:00 pm | Cost: FREE | Alemany Farm
SF's "Earth Day on the Green" w/ Farm Tours & Mini Plant Sale (2024)
Join @alemany_farm (700 Alemany Boulevard) for its Earth Day on the Green celebration from 11 a.m. to 3 p.m. on Saturday, April 27. This free event will feature plantings, a mini plant sale, farm tours, face painting, food, music from Tony Saunders and the Noteworthy Band, and ...

Friday, May 3

Bair Island Walking Tour (Redwood City)
Friday, May 3 – 10:00 am - Ends at 12:00 am | Cost: FREE | Bair Island Trail Parking Lot
Bair Island Walking Tour (Redwood City)
Join Peninsula Open Space Trust for a walking tour at Bair Island! You’ll be guided by POST ambassadors who will share the history of this beautiful protected space, information about the species that live there, and what you can do to contribute. This easy 1 mile ...

Saturday, May 4

2024 El Cerrito Hillside Festival + Insect Hike & Nature Scavenger Hunt (May 4-5)
Saturday, May 4 – 8:00 am - Ends at 8:00 pm | Cost: FREE | El Cerrito Hillside Natural Area
2024 El Cerrito Hillside Festival + Insect Hike & Nature Scavenger Hunt (May 4-5)

The El Cerrito Trail Trekkers are proud to host the tenth annual El Cerrito Hillside Festival in El Cerrito’s 100-acre gem, the Hillside Natural Area. There’s something for everyone at the festival, including guided, informative hikes about the geology, trees, edible and medicinal plants, birds, ...

Sunday, May 5

2024 El Cerrito Hillside Festival + Insect Hike & Nature Scavenger Hunt (May 4-5)
Sunday, May 5 – 8:00 am - Ends at 8:00 pm | Cost: FREE | El Cerrito Hillside Natural Area
2024 El Cerrito Hillside Festival + Insect Hike & Nature Scavenger Hunt (May 4-5)

The El Cerrito Trail Trekkers are proud to host the tenth annual El Cerrito Hillside Festival in El Cerrito’s 100-acre gem, the Hillside Natural Area. There’s something for everyone at the festival, including guided, informative hikes about the geology, trees, edible and medicinal plants, birds, ...

Old Woodside Store Day: 1880s Logging Town Fun (2024)
Sunday, May 5 – 12:00 pm - Ends at 4:00 pm | Cost: FREE | Woodside Store
Old Woodside Store Day: 1880s Logging Town Fun (2024)
On May 5 from 12-4 p.m., the San Mateo County Historical Association will present Old Woodside Store Day, a free family event! Visitors will be invited to experience life in the 1880s, as activities will focus on the history of the Woodside Store and the redwood ...
“Fiesta of Roses” Peninsula Rose Show & Sale (Redwood City)
Sunday, May 5 – 12:00 pm - Ends at 3:30 pm | Cost: FREE*
*Free
| Community Activities Building, Red Morton Park
"Fiesta of Roses" Peninsula Rose Show & Sale (Redwood City)
Rose Show and Sale May 5, 2024 – Public Invited Fiesta of Roses See beautiful blooms and arrangements. American Rose Society rules, judged, with Horticultural, Arrangement and Challenge sections. * 100+ Roses for sale. Host Peninsula Rose Society in collaboration with Santa Clara County Rose Society and San ...

Saturday, May 18

SF World Naked Bike Rides 2024 (Bay2Breakers Weekender)
Saturday, May 18 – 11:00 am - Ends at 3:00 pm | Cost: FREE*
*A Big Smile Guarantees Your Freedom to Roll With Us!
| Rincon Park
SF World Naked Bike Rides 2024 (Bay2Breakers Weekender)
By popular demand, we have added a #Bay2Breakers ( Sun 19 May ) “warm up” #WNBRsf2024 Ride&AfterParty ( Sat 18 May )* to the 2024 Calendar to engage the hundreds of Nudists & Naturists & thousands of other active fun loving folks in town that ...
Growing Together Day 2024 at Candlestick Park (SF)
Saturday, May 18 – 12:00 pm - Ends at 4:00 pm | Cost: FREE | Candlestick Point State Recreation Area
Growing Together Day 2024 at Candlestick Park (SF)
Join us for this free, family-friendly event that celebrates the power of art, community, and nature. Participants will have the opportunity to help renowned San Francisco artist Joe Colmenares paint a mural in the park! The festival will also feature a DJ, the SF Public Library book mobile, and activities hosted by local non-profits such as kite making, fishing, sensory plant walks, invasive ...

Saturday, June 8

SF World Naked Bike Rides 2024 (Summer Int’l Classic)
Saturday, June 8 – 11:00 am - Ends at 3:00 pm | Cost: FREE*
*A Big Smile Guarantees Your Freedom to Roll With Us!
| Rincon Park
SF World Naked Bike Rides 2024 (Summer Int'l Classic)
SUMMER Saturday 8 June International Classic 11 am Gathering & 12pm Noon Start ( Times for All Rides&AfterParties ) Rincon “Cupid’s Arrow” Park, Folsom Street & The Embarcadero Drive, San Francisco UPDATES: Tweets by sfwnbr https://wiki.worldnakedbikeride.org/index.php?title=San_Francisco A Big Smile Guarantees Your Freedom to Roll With Us! Why We Ride Naked or #BareAsYouDare: We ...

Monday, July 29

Delta Aquariids Meteor Shower 2024
Monday, July 29 – 10:00 pm - Ends at 5:00 am | Cost: FREE | San Francisco Bay Area
Delta Aquariids Meteor Shower 2024
The Delta Aquariid meteor shower will be active from July 12 to August 23, 2024, producing its peak rate of meteors around July 30. However, this meteor shower is unique; from late July through early August, you may see meteors. If you are unable to view ...

Saturday, August 17

San Francisco Sea Music Festival 2024
Saturday, August 17 – 11:30 am - Ends at 7:45 pm | Cost: FREE*
*This is a FREE all-day multistage music festival! Donations to support the event are highly appreciated!
| San Francisco Maritime National Historical Park
San Francisco Sea Music Festival 2024
The San Francisco Sea Music Festival will be a lively day of sea music and festivities, bringing the whole waterfront to life. Set against the picturesque backdrop of San Francisco Maritime National Historical Park and Fisherman’s Wharf, this exciting event will feature multiple stages at ...