except the following can stay visa-free 30 days in Jeju Province. Travelers using this program must hold a K-ETA approval before their flight and enter Jeju via direct flights only. However, the above-mentioned nationalities are eligible if holding a Certificate of Invitation issued by Jeju Government or Jeju Island Immigration Office, or have previously visited South Korea for 3 times since 1996 or once since 2006 while holding permanent residence permits issued by Five Eyes countries (Australia, Canada, New Zealand, United Kingdom and the United States). APEC Business Travel Card Holders of passports issued by the following countries who possess an APEC Business Travel Card (ABTC) containing the "KOR" code on the reverse that it is valid for travel to South Korea can enter visa-free for business trips for up to 90 days. ABTCs are issued to nationals of: South Korean visas South Korea provides visas to cover various approved activities in country. Working Holiday Visa (H-1) The Working Holiday Visa (H-1) is issued to young-adult foreigners in some countries which have reciprocal agreements with South Korea. Holders are allowed to stay in the country for up to one year and engage in some employment activities as well as some educational activities. However, the main purpose of the trip is intended to be vacation. People between the ages of 18 and 25 or 30, depending on the country, are eligible for a South Korean working holiday visa. A working holiday visa holder cannot be employed in certain jobs such as receptionist, dancer, singer, musician, acrobat, or in places of entertainment where they may endanger good morals and manners. Overseas Study (D-2) visa The Overseas Study (D-2) visa is issued to a foreigner who are planning to study at the undergraduate or above level of school. Due to the high cost of education and difficulty in attracting foreign students the government considered granting special work visas to parents of students on D-2 visas in 2006. Parents would have been able to remain and work in the country for up to five years. In the same year it was noted that foreign students often taught illegally to keep up with their finances. Immigration law allowed D-2 visa holders only to work part-time in some businesses which paid an average of 3000W per hour. Students were allowed to work only 20 hours per week. However, students could earn 30000-50000W per hour teaching languages