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Visit the MaST Center

Stop in on Discovery Days...
for FREE!

The MaST Center is open for public viewing
Saturdays from 10am - 2pm
Summers (June-August) Thursdays 4-7pm

See our aquarium that holds 3,000 gallons of seawater

View 250+  native Puget Sound species

Experience 2 large touch tanks

See our 38 foot Gray Whale skeleton and other marine mammal skeletons

Learn about plankton while using microscopes at our plankton station

Become a virtual SCUBA diver for a day!

Learn about current issues in the marine ecosystem of Puget Sound

Photo Credit: Sarah Alston

Special Discovery Day Programs


Science on the Sound
Speaker Series

1st Saturday of the month: 12:00 - 1:00 PM

Live Dive

2nd Saturday of the month: Dives at 11 & 1

New Volunteer Orientation
3rd Saturday of the month:
10:00 AM - 12:00 PM

Photo Credit: Sarah Alston

Become a Volunteer!

 We are always looking for community members to become part of our volunteer team. No experience required!

Check our Calendar of Events

Make a donation to support the MaST Center

Directions and map
Contact us for more information