Private Group Tours

The beautiful mountaintop setting and extraordinary history of Mount Wilson Observatory provide the backdrop for a truly memorable group experience. Whether your group is interested in astronomy, science, engineering, history, or simply exploring one of Southern California’s most remarkable landmarks, a private tour offers an in-depth look at the Observatory and its legacy of discovery.

What Do Private Tours Include?

A typical private tour includes a guided walk around the Observatory grounds (approximately two hours or more), a presentation on the history of Mount Wilson Observatory, and visits to the major telescopes including close-up looks at the instruments with descriptions of their operation and of the amazing discoveries made with each.

Private tours are offered during daytime hours only and do not include telescope observing. However, private tours may be added to a reserved nighttime observing session on either the 60-inch or 100-inch telescope. Please visit our Observing page for information about booking a telescope reservation.

Spanish-Language Tours

Private tours may be conducted in either English or Spanish, subject to guide availability. Please indicate your language preference when making your reservation request.

When Can Private Tours Take Place?

Private tours can generally be scheduled throughout the year, excluding major holidays. Advance notice is required to allow time for scheduling guides and coordinating your visit.

Group Size & Notice Requirements

Most private tour groups include 25 guests or fewer, but we can accommodate groups ranging from a single visitor to 60 participants. Larger groups may also be possible with sufficient advance planning and staff availability.

How Do I Arrange a Private Tour?

To request a tour, contact tours@mtwilson.edu with your preferred date and estimated group size. If your requested date is available, we will provide a tour request form along with information regarding fees, payment procedures, and what to expect during your visit.

Tour Fees

Private tours start at $200 for up to 8 guests.

For groups larger than eight, an additional fee of $25 per person applies.

Full payment must be received at least two weeks prior to the scheduled tour date.

Children

For groups that include children under the age of 12, at least one adult must accompany every ten children.

Bringing children younger than 10 is not recommended.

Accessibility

Mount Wilson Observatory is a historic mountaintop facility with uneven terrain, steep grades, stairs, and areas that may not be fully accessible to all visitors. While many portions of the grounds can be viewed without extensive walking, access to certain buildings and telescope facilities may be limited.

Guests with mobility concerns or accessibility needs are encouraged to contact us before their visit so we can discuss available accommodations and help determine whether the tour is appropriate for their group.

Cancellation Policy

Weather or other circumstances beyond our control may occasionally require the Observatory to cancel a tour on short notice. If Mount Wilson Observatory cancels your tour, all fees will be refunded within five business days. Alternatively, the tour may be rescheduled, subject to availability.

If your group chooses to cancel, refunds will be issued according to the following schedule:

Questions?

For additional information about private tours, please contact tours@mtwilson.edu.