Puerto Rico Guest® A Travel & Sports®, Inc. MasterGuide™ to Puerto Rico, © 2008 Select Language English | Español | Deutsch | Francais | Portugues Expert Help | Email this page | 34865 | Packages / Coupons / Auctions | Create Your MasterGuide™ | Advertise La Cueva de María la Cruz > Puerto Rico > Loíza > Attractions & Sights 787-256-8230 787-256-8226 787-256-4945FX Rt 187 at Rt 188, sector La Cueva. In 1948 the Centro de Investigaciones Arqueológicas uncovered evidence of the Archaics in this cave. All photos © by their respective owners. Photos may not be reproduced in any form without the owners written permission. Symbol Key: Sponsors, Attractions & Sights.