This document proposes reestablishing an historic train line in Puerto Rico and constructing a new terminus in the village of La Parguera to promote sustainable transportation and environmental protection. It outlines problems from abandoning the old train network, then justifies selecting the southwest region as an important area for reinstating service. Detailed plans show rebuilding parts of the abandoned line and constructing an ecologically-friendly station building in La Parguera to enhance the village while separating vehicle traffic from fragile ecosystems.