









Wander among hundreds of fluttering butterflies on a historic naval island. The Bay Area Butterfly Festival brings hands-on nature exhibits to Mare Island, where officers once lived and submarines set sail.
Family-friendly festival
Hands-on nature exhibits
Historic naval base
Outdoor education
Tips
🏛️explore the historic naval buildings
☕grab coffee in the old Officers quarters
Sunday, June 14, 10:00 AM
Bay Area Butterfly Festival
June 14 at 10am
Vallejo










Wander among hundreds of fluttering butterflies on a historic naval island. The Bay Area Butterfly Festival brings hands-on nature exhibits to Mare Island, where officers once lived and submarines set sail.
Family-friendly festival
Hands-on nature exhibits
Historic naval base
Outdoor education
Tips
🏛️explore the historic naval buildings
☕grab coffee in the old Officers quarters
Sunday, June 14, 10:00 AM
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