The Old Man and the Sea is a novel written by the American author Ernest Hemingway. It tells the story of an old fisherman named Santiago who has gone 84 days without catching a fish. On the 85th day, he sets out to sea and finally hooks a giant marlin. Santiago battles with the fish for three days, struggling against the elements and his own physical limitations. Eventually, he manages to kill the marlin but on the way back to shore, sharks attack and devour the fish.

Despite his physical exhaustion, Santiago's spirit remains unbroken and he returns to shore with the remnants of the marlin's skeleton. The novel explores themes of human perseverance, the relationship between man and nature, and the struggle against one's own limitations. It is a powerful and poignant story that has captivated readers for decades.