Park Amenities

Group Policy

Advance reservations are required for groups over 10. The Park will typically not be able to accommodate groups over 10 during peak times. Contact the General Manager to determine availability. The Foundation reserves the right to decline such requests.


Picnic areas are available at: 1. The Villa and the Wine Garden (accessible from the Villa Parking Lot to the left of the Villa off Castle Road).  Note that an ADA accessible picnic table and ramp are available behind the Villa. 2. Around the Castle Lawn (COMING SOON: easier access from the soon to be reopened South Gate Parking Lot on Old Winery Road).


The Park has extensive trails and walkways that range from easy strolls to strenuous hikes. These are open to the public as weather and conditions permit. Trails may be closed without notice.

Villa and Museum

A replica of the majestic Villa built by Agoston Haraszthy in 1861 is located on the site of the original residence. The Count's original Villa is long gone but in 1987, near the end of her life, Antonia Bartholomew rebuilt the Villa. The museum in the Villa is currently closed due to covid-19. Parking is available at the Villa Parking Lot to the left of the Villa off Castle Road (follow signs).


The Foundation and winemaker, Kevin Holt established a new winery - the Bartholomew Estate Winery. Featuring wines from the estate vineyards, the newly renovated tasting room is a perfect place to sample the flavors of the property, relax on the Oak Knoll, or celebrate with family or friends. Open 10 a.m. – 4:30 p.m. daily. Parking available at the tasting room entrance at 1000 Vineyard Lane (the end of Castle Road).

Sonoma Plein Air Art Exhibit

The Winery is hosting an enchanting exhibit of local artists curated by the Sonoma Plein Air Foundation in the gallery adjacent to the tasting room.