After completing Dead Drop, Clara will call, informing Dani that she needs to talk. She'll ask you to come to the old orphanage in Esperanza, and to come alone. Head to the southern part of Esperanza ...

To reach the caves, follow the roads (or fly) north of Verdera, then break off the road and follow the second Guerrilla path on your left as it cuts through the mountains. Once you reach the cave ...