Photo: World's Longest Underground River Discovered in Mexico, Divers Say

Email to a Friend << Back to Full Story


A cenote, or sinkhole, called Calimba offers an entrance—and a window—into the Yucatán Peninsula's underground limestone caverns.

A pair of divers says that they have mapped the world's longest underground river in the caves—a twisting, turning waterway 95 miles (153 kilometers) in length.

Photograph by Steve Bogaerts

EMAIL NEWSLETTER Photos and News of the Week

Get the top photos and news of the week from National Geographic News, plus occasional breaking-news alerts.

See Sample >>
Please enter a valid email address
Privacy Policy

MOST VIEWED NEWS

Earth's Core, Magnetic Field Changing Fast, Study Says

Even Modest Increases in MPG Can Equal Big Gas Savings

Amazon Tribe Attacked by Masked Gunners
NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS

ADVERTISEMENT

NATIONAL GEOGRAPHIC'S PHOTO OF THE DAY

Today's National Geographic Photo of the Day

• Today's Photo

• Download as Wallpaper

Photo and Headline Widget

Put our latest news and photos on your Web page or desktop—automatically updates! See Sample
Download Widget