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Due to inclement weather, Highline College will be closed. All classes and operations including online classes are canceled for Nov 20th.

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Welcome to Highline College Marine Science and Technology Center

Visit the MaST Center Aquarium

Discovery Day
Underwater Photography Challenge
Education Programs
Upcoming Events

MaST Center Aquarium

The MaST Center Aquarium fosters a culture of marine stewardship by engaging our community through interactive learning, personal relations and exploration.

The MaST Center Aquarium is the marine biology and aquarium facility of Highline College. Dedicated to expanding knowledge about Puget Sound, the MaST Center Aquarium serves as both formal teaching institute and public learning center. We are located 4 miles south of campus at Redondo Beach with easy access to a variety of nearby habitats.

Our 2,500 square-foot facility offers public space, classroom, laboratories, offices, research areas with state-of-the-art equipment and an aquarium. The Aquarium holds over 15 tanks totaling approximately 3,000 gallons of flow-through seawater, and displays over 250 native Puget Sound marine species.

Open Hours

Discovery Day: Saturday 10am-2pm

Field Trips & Tours: Weekday by appointment only

Holiday Closures: December 21st and 28th

Contact Information

Phone: (206) 592-4000

Email: mast@highline.edu

Locations and Directions
MaST Center Aquarium
28203 Redondo Beach Dr. S.
Des Moines, WA 98198

Download Campus Map

Mailing Address:
MaST Center Aquarium
Highline College
P.O. Box 98000
Des Moines, WA 98198-9800

Department Directory

Buy MaST Merch Here!