In 1942, a German submarine sank a British merchant ship. A sailor of Chinese origin who served on it managed to jump overboard in a vest, and then found a free raft in the water. The small supplies of water and biscuits on the raft quickly ran out. The sailor, drifting on a raft in the Atlantic Ocean, collected rainwater and ate raw fish, which he caught with an improvised fishing rod, and once he managed to catch a seagull and suck its blood. 

So he swam for 133 days until the raft reached the Brazilian shore

What an incredible story of resilience and survival against all odds! Truly inspiring.