Did they ever find the endurance?

Yes, the wreck of Ernest Shackleton's ship, the Endurance, was discovered on March 5, 2022, in the WedDELL Sea off the coast of Antarctica. It was located at a depth of about 3,008 meters (9,869 feet) and is remarkably well-preserved due to the cold, deep-sea environment. The discovery was made by the Endurance22 expedition, which used advanced underwater drones to locate the ship.