Tetley was just entering the Roaring Forties, and encountering strong winds. He experimented with self-steering systems based on various combinations of headsails, but had to deal with some frustrating headwinds. On 21 December he encountered a calm and took the opportunity to clean the hull somewhat; while doing so, he saw a shark prowling around the boat. He later caught it, using a shark hook baited with a tin of bully beef (corned beef), and hoisted it on board for a photo. His log is full of sail changes and other such sailing technicalities and gives little impression of how he was coping with the voyage emotionally; still, describing a heavy low on 15 December he hints at his feelings, wondering "why the hell I was on this voyage anyway".