Saturday, March 14, 2015 • 10:30 a.m.–noon
Ocean Beach, San Francisco
Note: For Members only
Search for elusive “black sand” (aka magnetite) at Ocean Beach. You’ll take home magnetite and magnets, so you can make your own miniature Black Sand exhibit.
Preregistration is required. The deadline to sign up for any excursion is noon on the day before the excursion (signup information is coming soon). Once you're registered, you’ll be contacted by our program staff regarding details such as where to meet.
Have questions? Call (415) 528-4420.