Concluding upon reaching the mouth of the Suárez River.
(*)(Its name modified by Article 14 of Law N° 9036 of May 11, 2012, "Transforms the Agrarian Development Institute (IDA) into the Rural Development Institute (INDER) and Creates the Technical Secretariat for Rural Development")
From the Suárez River, continue upstream until reaching a point 200 meters distant from the road that joins the towns of Cahuita and Puerto Viejo; from this vertex and parallel to this road and bordering on the northeast side with the Cahuita National Monument up to where the 200 meters intersect with the Carbón River.
From this point downstream to its mouth.
From the mouth of the Carbón River, reserving a width of 200 meters as detailed at the beginning parallel to the Atlantic Ocean up to the mouth of the Sixaola River.
From the mouth of the Sixaola River upstream until reaching coordinate north 175,830, east 660,480; two thousand meters must be excluded in this section, which correspond to the inalienable zone or border zone.
From this point, always reserving the two thousand meters, it will connect with the following coordinates:
| North | East |
|---|---|
| 176,540 | 660,205 |
| 176,940 | 659,730 |
| 178,940 | 660,180 |
Up to this value corresponds the boundary with the Chase indigenous reserve.
| North | East |
|---|---|
| 179,940 | 659,180 |
| 181,040 | 657,480 |
| 183,040 | 657,130 |
| 182,940 | 656,180 |
Up to this value corresponds the boundary with the Talamanca indigenous reserve.
| North | East |
|---|---|
| 182,865 | 655,255 Boundary Sibujú Norte indigenous reserve. |
| 182,190 | 653,040 Bitey River. |
From the previous Coordinate or Batey River downstream until reaching its mouth at the Estrella River. From the mouth of the Estrella River upstream until reaching the canal at coordinate north 190,960 east 648,600. Along this canal until reaching the junction with the river at coordinate north 191,740 east 654,950. From this point upstream until reaching coordinate north 195,100, east 641,200; from this coordinate to the junction of the Carbón River with the Bananito River at coordinate north 201,530, east 640,675. From this junction downstream of the Bananito River until reaching the mouth of the Tugela River.
From this vertex it will connect and continue to coordinates:
| North | East |
|---|---|
| 205,075 | 640,540 |
| 205,910 | 640,600 |
| 206,460 | 640,500 |
| 207,050 | 640,000 |
| 208,830 | 639,100 |
| 209,050 | 638,850 |
| 209,150 | 638,300 |
| 210,030 | 637,600 |
| 210,890 | 637,300 Banano River. |
From this point, Banano River downstream to its mouth at the Atlantic Ocean, encompassing an area of 70,000 hectares.