Starting from a point located 100 meters northeast of the mouth of the Cocles River on the high-tide line. It continues from that point and always parallel, 100 meters to the Cocles River heading southwest until reaching the current road between Puerto Viejo and Manzanillo. It follows that road heading east up to 100 meters before the bridge over the Ernesto stream (quebrada) where it takes a line parallel, 100 meters to said stream upstream, up to its headwaters (naciente). At its headwaters, it takes the 40-meter elevation contour curve and proceeds along said curve until reaching the intersection between coordinates 609,000 E and 395,000 N. From that point, it follows a line of 300 meters, due south, to subsequently find another line located 100 meters before the headwaters of the Milla stream. From that point, it follows downstream a line parallel, 100 meters to said stream until reaching a point located on the coast 200 meters before the high-tide line. It then continues heading southeast, parallel, 200 meters to the coast to a point located 300 meters before the first mouth of the Gandoca Lagoon (laguna Gandoca) (currently closed) and takes that line parallel, 300 meters to the Gandoca River upstream, to a point located between coordinate 617,000 E and coordinate 391,400 N. From that point, it takes a heading due south to the Sixaola River, where it then proceeds downstream along the left bank to its mouth. From that point at the mouth, a line is taken perpendicular to the beach of 2,500 meters and continues bordering the coast heading northeast and parallel to it at a distance of 2,500 meters to an imaginary line perpendicular, 2,500 meters to the initial point of this description, located 100 meters northeast of the mouth of the Cocles River. In order to provide greater protection offshore against human actions tending to harm marine turtle species.
(Thus the limits of this Refuge were expanded by Article 2 of Executive Decree No. 34043 of September 11, 2007) Approximate Area: 9,449 Ha.
| Continental section............................................... | 5,013 Ha |
|---|---|
| Marine section .................................................... | 4,436 Ha |
| TOTAL.................................................................. | 9,449 Ha |
(Ratified by Article 1 of Executive Decree No. 32753 of May 16, 2005).