The greatest depth a team of professional divers has reached is a depth of 1,850 ft below sea level off the coast of the Mediterranean Sea. Not all dives are below sea
level. In a lake in Yellowstone National Park, any trained diver can dive to an elevation of 7,600 ft above sea level to see underwater wrecks and geysers.
Q: what is the difference in elevations between the dive in the Mediterranean Sea and the dive in Yellowstone national park?