The Alaska SeaLife Center offers an unrivaled up-close and personal experience with Gulf of Alaska marine wildlife. Witness 1000 pound Steller sea lions gliding past underwater viewing windows, fins diving in a carefully crafted naturalistic habitat, and harbor seals hauled out on rocky beaches. Alaskan king crab, sea stars, and Pacific octopus also await you, as well as a whole variety of inter-tidal creatures and deep sea fishes. There is lots of good information on the Sealife Center at:
http://www.alaskasealife.org/

When making reservations through Seward's Information Help Line for lodging and tours, discounted tickets for the Sealife Center can also be purchased.