Answer:
Augustus managed to cross hostile enemy territory to reach Caesar after the shipwreck.
Step-by-step explanation:
Augustus, who was known as Octavian at the time, was Caesar’s grand-nephew. He was the grandchild of Julius Caesar’s sister. Caesar himself did not have any legal son to succeed him – he had one daughter and a son with queen Cleopatra, Cesarion.
At one point around 46 BC Octavian was set to join Caesar in Hispania in his fight with the political opponent Pompey. He was about to arrive later as he was ill. On his journey to Hispania, the shipwreck occurred and Octavian was on the enemy’s land with only a few people.
However, Octavian managed to cross the enemy’s land in order to reach his grand-uncle’s camp. This impressed Caesar greatly, especially as Octavian did not show much military skill beforehand.
After this, Caesar admired his great-nephew more and, as soon as they were back in Rome, he names him as his legal heir.