This podcast episode explores the expeditions of Jules Dumont d'Urville, focusing on his journey from Tonga to Fiji, the discovery of the lost expedition of Jean-Francois de Caloup-Laparrouse, the fate of the La Perouse Expedition, the challenges faced during the return journey, and the personal and professional challenges faced by d'Urville after his expedition. The episode highlights d'Urville's encounters with hostile natives, his battles with illness, and his persistence in collecting specimens and artifacts. Despite his achievements, d'Urville faced frustrations and dissatisfaction with his recognition, and his involvement in the July Revolution of 1830 showcased his political opinions. Overall, the episode delves into the adventures, challenges, and character of Jules Dumont d'Urville.