The Republic of Korea (South Korea) is generally considered as one of the safest
countries in the world by many tourists. It is safe to walk in the streets any time of
the day in major cities. South Korea successfully held Seoul Olympics,
2002 World Cup, and most recently PyeongChang Winter Olympics which once again demonstrated safe environment. You will notice that policemen are kind and always
willing to help.
Follow basic safety rules, and when you need help, go to the nearest police station or dial 112. Following link will provide you with more detailed information.
For lost and found, this link would also be helpful.
South Korea has very good public transportation system;
local buses, regional buses, subways, and trains are well-connected, safe, and clean. Buses and subways operate late hours as well. Taxi and shared vehicles are also available. http://english.visitseoul.net/essential-Info-article/Getting-Around_/211