Golfo Corcovado is a vast, open bay in the northern Patagonian region of Chile, situated between the southeastern coast of Isla Grande de Chiloé and the mainland coast of the provinces of Llanquihue and Palena. This expansive body of water measures approximately 90 kilometers (50 nautical miles) north to south and 45 kilometers (25 nautical miles) across at its widest point. The gulf opens to the Pacific Ocean and connects to the Golfo de Ancud to the north and the Moraleda Channel to the south. Its waters are dotted with numerous islands, including Guafo, Desertores, Chaulinec, Quehui, and Lemuy, creating a complex and rich marine ecosystem. The area is characterized by significant marine conservation efforts, most notably the Tic-Toc Golfo Corcovado Marine Park, a 100,000-hectare marine protected area established to safeguard critical feeding and breeding grounds for endangered marine mammals.