@CNN: Divers in Mexico have discovered what experts believe is the world’s longest underwater cave system https://t.co/uk8mRR9vol https://t.co/eRnPwUfOzo

January 18, 2018 / The Arbiter / CNN

@CNN: Divers in Mexico have discovered what experts believe is the world’s longest underwater cave system https://t.co/uk8mRR9vol https://t.co/eRnPwUfOzo

Divers in Mexico have discovered what experts believe is the world's longest underwater cave system https://t.co/uk8mRR9vol http://pic.twitter.com/eRnPwUfOzo

— CNN (@CNN) January 18, 2018

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