Ecuador and the Galápagos, July 23 - August 7, 2007 / 20070806p_SM_Bartolome_StrongKids
Ruth Milner, rmilner plus web at bookofmarvels dot net
12/21/2007
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20070806p_SM_Bartolome_StrongKids Superkids! Bartolome

Who said kids can't lift big rocks? Ah, but they're cheating: these rocks are tuff, which is made of lightweight volcanic ash and minerals with lots of air bubbles inside.