Birthday Party FAQs

I booked my party, what happens next?

  • Immediately after booking a party with us you will receive:

  1. A confirmation email with specific details about your reservation date and time

  2. A transaction receipt for your purchase

* If you have not received these emails within 24 hours of making the reservation, please email

  • 7 days before your party you will receive a birthday party reminder email

  • During the weeks leading up to your party you are welcome to:

  1. Come into the Museum to view the party venue

  2. Ask our Birthday Party Coordinator any questions via email or phone (707) 546-4069 x111

    *Add-On additions and changes should be completed 2 weeks before your party. Contact

What does your birthday party reservation include?

Indoor Birthday Party Room

  • 30 person maximum, includes 15 children & their adults.

  • Dow Party Room for 1.5 hours (*2 hour time slots, starting in January)

  • FULL DAY access to the entire museum for you and your guests

  • Museum T-Shirt for birthday child.

  • Editable PDF Invitations

  • The Basics: Chairs and tables, sink, fridge, wagon to transport gifts

  • Optional add-ons for purchase, see our Birthday Customizations page for details.

What is your cancellation and schedule change policy?

Cancellation and Refund Policy

  • More than 21 days before party: Full refund, minus $25 administrative fee and $50 ProFace deposit (if applicable)

  • Fewer than 21 days before party: Partial refund, minus $25 administrative fee and $50 ProFace deposit (if applicable) may be available

  • Fewer than 7 days before party: No refund

  • In the unlikely event that the Children's Museum should have to cancel a reservation for unforeseen circumstances, you will be issued a full refund, or may choose to reschedule your party on an alternate available date.

Professional Face Painter Cancellation

There is a $50 nonrefundable deposit included in the cost of this Add-On. This means that if the ProFace Add-On is booked and later cancelled in accordance with the above cancellation policy, the $50 nonrefundable ProFace deposit would be retained and the amount refunded for the Add-On would be $75

Rain Contingency Policy

  • Cancellations due to rain MUST be made no less than 5 days before reservation to receive a full refund, minus $25 administrative fee and $50 ProFace deposit (if applicable).

  • Refunds are not available for rain cancellations made less than 5 days before reservation.

  • Host may reschedule to a different date no less than 5 days before original reservation.

  • Host may request that party be moved to the indoor party room if available, but host must comply with indoor party policies, timeline and guest totals (see website for indoor party details). A $15 processing fee will apply.

  • If host chooses to move forward with party in the rain, a 10’ x 10’ canopy can be provided.

Changes to Schedule: 

Date and time changes (if available) can be made until 21 days prior to new reservation date. A $15 processing fee will apply.

Where can I find the PDF of your birthday invitation?

You can download the pdf of our birthday invitation on the right side of this webpage, under "Important Documents."

What is inside of the party room?

Indoor Party Room Details

  • Festive painted and minimally decorated 24’ x 14’ room

  • Refrigerator/Freezer (standard size) for use during your party

  • Two (2) countertops and one (1) sink

  • One (1) 24” x 48” folding table (suitable for food and cake)

  • One (1) 18” x 48” decorative console table (suitable for gifts and party favors)

  • Four (4) trapezoid tables pushed together to create one long 180” x 30” table

  • 15-18 youth-sized chairs for guest seating

  • Access to a wagon for loading and unloading

  • 4 (10“ x 10”) decorative magnet board for photos/signage

Outdoor Birthday Party Space

  • Shaded private outdoor area

  • 4 picnic tables

  • 2 wood buffet/side tables and prep sink

  • 1 rolling cart for loading and unloading

  • Simple wood framed playhouse

We are planning to arrive early to play before our reservation time. Can we store our things somewhere while we play?

Access to the party room is not available until the start time of your reservation, we can store non-perishable items before your party.

What is the guest limit?

The guest limit for birthday parties is 30 people total. Total count includes hosts, birthday child, family members and all guests whether they are museum members or not.

We require supervision from a minimum of one adult for every four children. You and the adults in your party are responsible for supervising the children at all times in all areas of the Museum.

Can adults without children attend our birthday party at the Museum?

Yes, adults without children are able the birthday party. All guests check-in by writing their first and last names on our check-in list.

If my friends or family have museum memberships, do they count towards my guest total?

Yes. Guests, including those with museum memberships, check-in as party guests at the Front Desk. This is because the party room is a private, exclusive space in the Museum not open to other museum members and visitors.

When can the host set up the party room?

The host will have access to the party room at the time of the reservation. Hosts and your guests may enjoy the rest of the Museum for the entire day, before and after your party.

How do the host & guests check in?

Hosts may arrive early to play and should return to the front desk 5-10 minutes before reservation time for birthday party check-in. After check-in a birthday party assistant will greet you with a wagon, help you load your things, take you to the party venue at the start time of your party and assist you with setup.

Guests may arrive early to play before the party reservation time. They will check-in at the Front Desk, receive a hand stamp and instructions regarding your party.

How do I know if my party has any additional charges for extra guests?

The Front desk staff will check-in all party guests upon arrival to the Museum and keep track of your totals. Please check-out with the front desk staff when leaving the Museum in order to pay for any overages.

Does the Museum provide party supplies?

The museum does not provide additional party supplies or decorations other than the already festively painted and minimally decorated party room. Go Green! - Eco Goods (plates, bowls, cup, utensils, napkins) can be purchased through us separately.

Can I bring my own decorations and party supplies?

The party room is festively painted and decorated. Party hosts are welcome to add simple decorations to the surfaces in the room and hang pictures onto the 4 (10” x 10”) magnet boards.

Please do not tape, tack, or adhere anything to the walls, flags or cabinets.

Decorations and party supplies must remain inside the party room.

May I have food delivered to the Museum?

Yes! Please notify front desk staff during check-in if a food delivery is scheduled.

Pizza and dessert can be ordered through us from Mary’s Pizza Shack or Costeaux Bakery. We take can of ordering, delivery and tip!

Please keep food and food consumption inside the party room.

I ordered pizza & dessert with my reservation, when will it be delivered?

Mary’s Pizza Shack

  • When pizza is ordered through us at the time of your reservation, we handle the ordering, delivery and tip

  • The pizza will arrive within 30 minutes of the start time of your party

  • Plates, napkins and utensils will NOT be provided unless you’ve reserved the Go Green! Eco Goods add-on.

Costeaux Bakery

  • When dessert is ordered through us at the time of your reservation, we handle the ordering, delivery and tip

  • The dessert will arrive before the start time of your party

  • Plates, napkins and utensils will NOT be provided unless you’ve reserved the Go Green! Eco Goods add-on.

Does the Museum provide any craft or activity for birthday parties?

The Museum has add-on activity options facilitated by a professional birthday Play Pal.

Hosts are welcome to bring their own activity, but all messes must be cleaned up, and all materials must stay in the rental area.

Can we bring balloons, streamers, confetti, or a piñata?

Please do not bring latex/rubber balloons (mylar balloons okay), piñatas, glitter, confetti, nuts, glass bottles, or alcohol onto the premises.

A $100 noncompliance fee may be assessed for failure to follow these guidelines. Removal from the premises and/or cancellation of the party may also be required.

Can we bring in outside vendors like a magician or face painter?

Outside vendors and performers are not permitted at the Children's Museum.

The Museum offers professional face-painting by Clementine the Amazing! See our birthday party webpage for details.

Do I need to clean up afterwards?

Yes, you are responsible for cleaning up party area before the end of your reservation time; remove decorations, dispose of waste and food in the bins provided, clear counters, tables, refrigerator and floor of your item. Our birthday party assistant will offer their help with clean up 15 minutes before your reservation time ends.

If the room is left excessively messy or damaged your $50 security deposit may not be refunded.

Can I bring an alcoholic beverage?

Alcohol is prohibited from the museum premises. A $100 noncompliance fee will be assessed for failure to follow these guidelines. Removal from the premises and/or cancellation of the party may also be required.

I am planning a small celebration in the Museum. Do I need to reserve a party room?

Yes, we ask that all birthday party celebrations occur in a reserved party room only. We have a limited number of picnic tables available for general Museum visitors. As a result, parties are not allowed to take place in our picnic area.


Reservation Information & Policies
Birthday Party FAQs

Day of Party Logistics > Everything you need to know about your birthday at CMOSC!
Birthday Invitation PDF > Get your invites out early!