Far from Home: The Adventures of Yellow Dog (1995) on Netflix

Plot summary

John and Katherine McCormick move their family from Vancouver to the coast of British Columbia, where John, a sailing enthusiast, teaches his sons Angus and Silas seamanship and survival skills. Angus finds a stray Labrador retriever, names him Yellow, and calls the dog his best friend; his parents doubt he is responsible enough to keep a pet, but Angus talks them into it. When John, Angus and Yellow take the boat out on the ocean, they run into a storm with hurricane-force winds. A huge wave swamps the boat. John is picked up and taken to a hospital, while Angus and Yellow, adrift in the lifeboat, come ashore on land that seems far from any settlement. John and Katherine work with the Coast Guard in the search.