Mare Island Shoreline Heritage Preserve


For outdoor enthusiasts, history buffs, photographers and artists, the southern "original" Mare Island Hill and Historic Shoreline is an unique parkland. On behalf of the Mare Island Heritage Trust, I invite you to hike, bike, explore, paint, contemplate, picnic and participate in tours, outings and events at the Mare Island Shoreline Heritage Preserve. Visit the Preserve open Friday through Sunday and holidays 10:00am-to one hour following sunset.

The Mare Island Shoreline Heritage Preserve is a 215-acre park located at the south end of Mare Island on land that formerly served as the U.S. Navy's first Naval Ammunition Depot, founded in 1857. Until we opened it for regularly scheduled access in April 2008, the land was off-limits to the public due to past sensitive Navy munitions production and storage operations and more recent environmental cleanup.

The property was granted by the California Legislature through the State Lands Commission to the City of Vallejo for development as a historic and nature focused park for all Californians in 2002. As an all volunteer group we are committed to providing for regular public use of the first phase of the regional park that includes the oldest naval cemetery in the Pacific, founded in 1858 and the 130 acres leading to the hilltop vista point. Access is through arrangements with the U.S. Navy and the City of Vallejo.

It takes a host of individuals, non-profit groups, agencies, local and regional businesses, corporations and foundations working together to realize the reuse of abandoned military property like this site as parkland.

To subscribe to our e-newsletter, email us or call 707-249-9633.

Myrna Hayes, volunteer Preserve Manager

Mare Island Heritage Trust

Artist: Carlo Carlucci


The Preserve

regular Preserve Hours 
Open  Fri Sat Sun & holidays
10:00am – one hour after sunset (current closure time 8:00 pm)

Upcoming Events (click here for more details and events...)

  1. October 10 Sat 10am-12noon Tentatively scheduled hike on the Western Magazine area of our Preserve.

  2. October 17 Sat Afternoon Boat Cruise. A few slots may be available for a 1:00pm-3:30pm boat trip aboard River Dolphin with Dolphin Charters.  Cost: $30 per person. To reserve call 510-527-9622 or 800-472-9942 or visit

  3. October 18 Sun morning Boat Cruise 10:00am-1:00pm "Water to Wine" Napa River Cruise during the Visions of the Wild H2O Festival hosted by the U.S. Forest Service and partners. Cost: $45 per person.  To reserve visit

  4. October 18 Sun evening Boat Cruise 4:00pm-6:45pm Evening sunset boat trip on the Mare Island Strait and Napa River $45 per person. Reserve at or call 800-472-9942

  5. October 25, Sun afternoon 2-3:30pm Lost Boats of Mare Island Memorial for the 7 submarines lost at sea during WWII. Dockside service, wreath-laying at Berth 6 Nimitz AVe and A St. Mare Island. (LCS-102 berth location) with a flag-raising beforehand at Morton Field at 1pm.

Click here for  Info.
San Pablo Bay Trail 
open Daily till sunset
entrance at
Azuar Dr. and A. St.

Photo: Celeste Langstaff

Photo: Eric Dugan

This was 2014...7th Annual Mare Faire and Fennel Festival flier 
9th Annual Mare Faire
Saturday August 13 2016
Sunday August 14 2016
Commemorate 71st Anniversary Port Chicago MutinyHomepage_files/1%20page%20flier%20v3%20Mare%20Faire%202014.pdfHomepage_files/1%20page%20flier%20v3%20Mare%20Faire%202014.pdfshapeimage_8_link_0shapeimage_8_link_1

Hike the Western Magazine tentatively scheduled
Sat Oct 10 10am-12noon
Meet at corner of Flagship Dr. and Nereus St.
4th Annual San Francisco Bay Osprey Days
June 24-26, 2016Homepage_files/3rd%20Annual%20Osprey%20Days%20Schedule%20of%20Events%20FIN%20June%2026-28%202015.pdfHomepage_files/3rd%20Annual%20Osprey%20Days%20Schedule%20of%20Events%20FIN%20June%2026-28%202015.pdfshapeimage_10_link_0shapeimage_10_link_1
Oct 18 boat trip flierHomepage_files/Dolphin%20Charters%20Napa%20River%3AMare%20Island%20Oct%2018%202015.pdfHomepage_files/Dolphin%20Charters%20Napa%20River%3AMare%20Island%20Oct%2018%202015.pdfshapeimage_11_link_0shapeimage_11_link_1