If you are finishing your trek with a pickup, you can give it to the driver.
If you finished your trek in town, you can leave the PLB at your accommodation reception ( the accom must be on our approved accom list) and ask them to leave in an envelope with your name and LTTS written on it and ask them to lock it away. We'll collect it later.
If you have gear retrieval, you can leave the PLB in the container once you have finished with the containers.