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halawa shaft and undergroung pumping station tour

NOTICE: Due to ongoing renovations, Halawa Shaft tours are suspended until further notice. The Halawa Xeriscape Garden remains open for tours. Call (808) 748-5041 for more information.

Descend more than 140 feet underground into the depths of the Koolau to visit a fully operational pump room and walk through a 300-foot tunnel to view a portion of the 919-foot water development tunnel. Tour includes introduction to Oahu's water cycle and guided xeriscape garden tour. Free 90-minute group tour is available by appointment only. Grade 7 and older.

Applicable DOE Standards

  • SC.ENV.5.6: Explain why recycling and conservation of resources are important
  • SC.3.8.2: Describe how the water cycle is related to weather and climate

For More Information

Please review the additional tour information before submitting a request for a tour or speaker through our online form or by email using a fillable PDF form.

Updated: 03/06/2020