Most importantly, Marconi is YOUR State Park.  

Come get to know what we have to offer.


The facilities you can enjoy at Marconi include:
  • Forest and Grassland Trails--approximately 3.5 miles of trails--that circle and traverse the 62-acre park with vistas of Tomales Bay and Pt. Reyes.
  • Outdoor Amphitheater that seats 40
  • Large Activity Field with volleyball, horseshoes, badminton, soccer balls and croquet equipment available for guests
  • Picnic Tables scattered near the front of the park
  • Four Meeting Rooms for groups of up to 150 people.
  • 40 Guest Rooms ranging from three twin beds to deluxe rooms with queen or king beds and seating areas.

Meeting & Event Room Details:

Marconi Conference Center’s rooms are designed to ensure maximum comfort and productivity in a variety of meeting or event formats.

Privacy: each group meets in a separate building dedicated exclusively to your group.  Each building features a primary meeting room, a pre-function or breakout area, two restrooms, wheelchair access, and a patio with a spectacular view.

Comfort: each building has many windows, with curtains or shades, for natural light and fresh air, as well as your choice of interior lighting and temperature control.  Our ergonomically designed chairs and tables will be arranged to your specifications.

Functionality: each building comes with a projection screen, lectern, bulletin boards with push-pins, easel with dry-erase boards and flip charts, and complimentary wireless Internet access.

Buck Hall
40 x 37; 1,480 Square Feet, Capacity 106

Built in 1913-14 to house the boiler, transformers, storage batteries and workshop for the transpacific wireless station, Buck Hall is listed on the National Register of Historic Places and is recognized at a national level of significance.

Buck Hall has been completely renovated into the facility’s largest meeting space. It has a versatile, airy main room with high ceilings and many large windows with views of the bay on one side of the room and the forest area on the other.  Large leather chairs ensure your conferees will have the maximum in comfort.  Your group will also benefit from this building’s tiled lobby, sitting area, and two large spacious patios.

McCargo Hall
22 x 28 and 13 x 13; 785 Square Feet, Capacity 40

McCargo Hall is also listed on the National Register of Historic Places. It is one of two cottages built by the American Marconi Company in 1913-14 to house its Chief and Assistant Engineer.

It has been renovated to become our most beautiful meeting space.  The Mediterranean stylistic elements of the building include the extensive use of tile and an arcade veranda which offers a spectacular view of Tomales Bay, the historic Marconi Hotel, and the cascading waterfall, pond, and garden area.

McCargo’s cozy pre-function room is exquisitely furnished and includes a gas fireplace.  Its L-shaped main room meets the needs of our smaller groups wanting a more intimate meeting space with comfortable leather chairs and lightweight tables.

Pine Lodge and Cypress Lodge
28 x 24; 672 Square Feet, Capacity 45

Contributing to the unique history of the facility, these two buildings were constructed by Synanon between 1964 and 1980.

Both buildings are designed to accommodate groups up to 45. Both have a 672 square foot main room opening off a central hallway; their main rooms have sliding glass doors onto a secluded patio with views of the forest area and Tomales Bay.

Cypress Lodge includes one breakout room with a capacity of 14 people
(15 x 13).

Pine Lodge includes two breakout rooms: Breakout A with a 12 person capacity
(15 x 11) and Breakout B with a 10 person capacity (15 x 10).

Lodging Details:

Marconi’s lodging buildings are nestled around a garden courtyard area where our guests can relax between meetings and take a quiet moment to enjoy the beautiful views.

Lodging includes 40 guestrooms with private baths, available in 1,2, and 3-bed configurations. All rooms are smoke-free and most have exterior access.  Handicapped accessible and equipped rooms are available.

Marconi’s dedicated staff meticulously maintains each room for the personal comfort that is essential to your experience.

Standard rooms include twin or queen-size beds, a full bath, in-room coffee, study desk, telephone, and complimentary wireless Internet access. The larger deluxe rooms have queen- or king-size beds and also offer an additional seating area, microwave oven, and a small refrigerator.

While our lodging rooms are television-free to encourage communication and group activities, our Lounge in the check-in building offers a wide variety of interactive games, reading material, and a television for watching DVDs and videos. The adjacent Business Center offers Internet access and other basic services at no charge to our guests.


40 Non-Smoking Modern Guestrooms with a total capacity of 102 guests


Number Available


1 King + 1 Twin

or 3 Twins


2 Twins


1 Queen


1 Handicapped Accessible

1 Queen, 1 Twin


Deluxe 1 Queen


Mini Kitchenette

Deluxe 2 Queens


Deluxe 2 Queens  + 1 Twin



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