Daejeo Ecological Park in Busan hosts the largest canola flower festival in South Korea. Even better, you can enjoy walking under a long cherry blossom tunnel right next to the park at Nakdong Riverside 30-ri Cherry Blossom Road.
Haeundae Sand Festival (해운대 모래축제), Busan, South Korea
Busan starts summer with Haeundae Sand Festival. This year, the annual event features world landmarks in the form of sand. See these sand masterpieces.