Get on Autop. Luis A. Ferré/PR-52 N in Monacillo, San Juan from PR-843, PR-844 and Las Cumbres Ave/PR-199 15 min (9.2 km) Follow PR-18 and Autop. José de Diego/PR-22 W to Maguayo. Take exit 24 from Autop. José de Diego/PR-22 W 20 min (29.1 km) Take PR-693 to Rockefeller Nature Trail in Higuillar, Dorado 17 min (10.6 km) Turn right 86 m Keep left to continue toward PR-693 69 m At the traffic circle, take the 2nd exit onto PR-693 3.9 km Turn left onto PR-6693/PR-693 Continue to follow PR-693 2.0 km Turn left to stay on PR-693 700 m Slight left to stay on PR-693 2.9 km At the traffic circle, take the 1st exit 550 m Sharp left 350 m Turn left onto Rockefeller Nature Trail