Puerto Rico Guest® A Travel & Sports®, Inc. MasterGuide™ to Puerto Rico, © 2008 Select Language English | Español | Deutsch | Francais | Portugues Expert Help | Email this page | 34273 | Packages / Coupons / Auctions | Create Your MasterGuide™ | Advertise Ojo del Buey > Puerto Rico > Dorado > Attractions & Sights 787-796-5740 787-796-6001 787-796-9031FX At the mouth of the La Plata river, Bo. Mameyal. This rocky formation is called the Eye of the Ox because it resembles the head of an ox. This area is reputedly the area where Cofresí, the Caribbean pirate, buried his treasure. All photos © by their respective owners. Photos may not be reproduced in any form without the owners written permission. Symbol Key: Sponsors, Attractions & Sights.