The people who live in Jeju Province do not speak exactly the same type of Korean as other Koreans. The Jeju dialect is recognized as a separate language, the Jeju language. Women have been an important part of family economics in Jeju-do. People on Jeju-do tie some ropes over their roof so that it can withstand strong winds. Jeju island is based on basalt. Because basalt has many holes, people had trouble with getting water to drink. As a result, they used Heobeok to carry water.