Travel & Sports: Puerto Rico ©2009 Travel & Sports® Inc. Select Language English | Español | Deutsch | Francais | Portugues Expert Help | Email this page | 39363 | Packages / Coupons / Auctions | Create Your MasterGuide™ | Advertise Tropical Agriculture Research Station > Puerto Rico > Mayagüez > Attractions & Sights 787-831-3435 787-831-3386FX Rt 65 at Rt 108. ars-grin.gov A former plantation, this unique facility is dedicated to research on tropical crops. An excellent map for a self-guided tour is available at the main office, itself a historic structure. All photos © by their respective owners. Photos may not be reproduced in any form without the owners written permission. Symbol Key: Sponsors, Attractions & Sights.