Upvote:1
No. You are eligible to get a 30 day visa exemption for transit.
Non visa-exempt nationals who are in transit through South Korea are visa-exempt for 30 days, provided they hold a physical visa or a residence permit issued by the following countries, and meet one of the routing requirements:
- They are directly arriving in South Korea from one of these countries and going to a third country, or directly leaving South Korea to one of these countries after arriving from a third country; or,
- They are arriving in South Korea from one of these countries and have transited in a fourth country for less than 72 hours before entering South Korea, and continuing to a third country; or,
- They are leaving South Korea after arriving from a third country to one of these countries and will be transiting in a fourth country for less than 72 hours.
Eligible Visas
- Australia
- Canada
- New Zealand
- United States
Alternatively, you can participate in an organized tour for roughly 10$.
https://en.wikipedia.org/wiki/Visa_policy_of_South_Korea#Transit