Temporarily Closed

Big News…

After much deliberation, Mobius has consolidated its two locations. The children’s museum, formerly located in the lower level of River Park Square, will move into the space that the science center occupies in the Post Street Annex of the historic Washington Water Power building. Together, the children’s museum and science center will be transformed into Mobius Discovery Center.


Mobius Discovery Center will take advantage of the strongest aspects of the play-based children’s museum and the inquiry-based science center, incorporating them into one discovery center. The space inside the historic building will be revamped to include the most popular exhibits from both the children’s museum and the science center.



Children (under 1)

Children (1+)


Seniors (65+)

Military w/ID

















10:00 am – 5:00 pm

10:00 am – 5:00 pm

10:00 am – 5:00 pm

10:00 am – 5:00 pm

11:00 am – 5:00 pm

Museum Rules

Masks are required for all unvaccinated visitors and children 3 – 12 years old. (updated 7/1, scroll down for more details)


Children must be accompanied by a person 16+ years old. 


Mobius is for the whole family! Children are not allowed on the exhibit floor without a guardian. Adults are not allowed on the exhibit floor without a child. 


Food and drink are not allowed on the exhibit floor.


Shoes must be worn at all times.


Mobius Discovery Center is located near City Hall and Riverfront Park, at 331 North Post Street. 


Due to construction on the Post Street Bridge, there is limited street parking near Mobius. We recommend parking in the River Park Square Parking Garage.


Foster Families: Foster families receive $2 off per person toward daily admission every Wednesday!


Hotel Key Card: Show your hotel key card and receive $1 off daily admission per person.


It is our belief that all children regardless of race, creed, gender, disability, or socio-economic status have a right to experience the benefits and fun of hands-on learning. The Mobius Scholarship Program makes this possible by providing complimentary group visits and six month family memberships.

What to expect when you visit...
Basic COVID Protocols:

Updated 7/1/2021


Masks are required for unvaccinated visitors and children 3 – 12 years old. Mask up to help us protect our young visitors who are not vaccine eligible.

Masks are not required for children under the age of 3. As an organization that primarily serves children, staff and volunteers will continue to wear masks. Facial coverings must cover nose and mouth.

Not feeling well? Have COVID-19 symptoms?
Even if you’re vaccinated, we ask that you wait to visit Mobius at this time. Experience Mobius at home by  purchasing a STEAM Kit HERE

Detailed COVID Protocols:
  • Be kind and be prepared to have fun!
  • Please put on your mask before entering Mobius. We appreciate the continued support and dedication of our members and community!
  • Plexiglass barriers are installed at admission registers to protect staff and visitors.
  • Sanitizing stations are placed throughout the facility.
  • Waiver: An inherent risk of exposure to COVID-19 exists in any public place where people are present. COVID-19 is a very contagious disease that can lead to severe illness and death. According to the CDC, senior citizens and visitors with underlying medical conditions are especially vulnerable. By purchasing admission or utilizing your membership you acknowledge that you understand and voluntarily assume all risks related to exposure to COVID-19 for all members of your group.

The cleaning procedures in place at Mobius will continue to follow our strict internal guidelines. Plus, additional guidelines issued by the CDC and the WA State Department of Health.

  • Our water table is filtered and the appropriate levels of chlorine are maintained.
  • Sanitizing stations are placed throughout the facility.
  • Staff sanitize our exhibits and high-touch throughout the day.
  • All staff and volunteers are required to wear masks.
  • All staff will be provided necessary Personal Protective Equipment.
  • All staff will actively wash or sanitize hands regularly.

Memberships provide unlimited admission for 2 adults in the same household and any 4 children for one full year! 


Did you know?! You can pay regular admission when you visit… and if you want to become a member the amount of your admission can be applied toward the cost of a membership, on the same day as your visit!

Reciprocal Memberships

Mobius participates in two reciprocal networks; Association of Science & Technology Centers Reciprocal Network (ASTC) which offers free reciprocal admission and Association of Children’s Museums (ACM) which offers half off general admission. Please bring your membership card (with reciprocal logo) from your home museum, ID will also be required. See links for additional rules. 

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