Natural History

Alaska Yukon Pacific Exposition Centennial - CWB offers Narrated Boat Rides on Lake Union!

  • Boat at Lake Union Park
  • Play at Lake Union Park
  • Learn at Lake Union Park

This year, on June 28, July 26, and Aug 30, The Center for Wooden Boats will host narrated boat rides on Lake Union to celebrate the AYPE Centennial!

Natural History

  • Learn at Lake Union Park

Natural History and Geology

Picture five Space Needles stacked on top of each other. This was the size of the Vashon Glacier, a 3,000-foot tall ice sheet that gouged out Lake Union and Lake Washington and sculpted Puget Sound during its retreat over 13,000 years ago.

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© 2008 At Lake Union Park