The festival takes place every July during the peak summer season when lotus flowers are at bloom.
Some popular events at the festival are the performances showcasing a royal love story, a night parade featuring Prince Seodong and Princess Seonhwa, performances of traditional music and dance, experiences of Baekje culture, and a photo contest that involves printing lotus flowers on shirts and handkerchiefs.
On the 20th Buyeo Seodong Lotus Festival in 2022, a sky bike and waterside train were introduced.
135 (designated on June 10, 1964), located in Seodong Park, is the place where the legend of King Mu, who married Princess Seonhwa of Silla, dwells.
According to Samguksagi, there is a record that says, "In the 35th year of King Mu of Baekje (634), a pond was dug to the south of the palace, water was brought in from about 20 miles away through the 8-km waterway to plant cherry trees and willow trees around it, and an island was made in the middle of the pond, symbolizing Bangjangseonsan Mountain".
Gungnamji Pond, which created a pavilion in the middle of a pond to express the idea of Taoism and pray for longevity, is the oldest artificial garden in Korea, and it is said that Baekje's Nojagong(노자공) went to Japan and passed on Baekje's garden landscaping techniques.
In the area around Gungnamji Pond, known as the site of a palace during the Baekje era, the legend of King Mu, whose childhood name was Seodong or Madong, both meaning yam child, has been handed down.
Then one night, an old man came from the palace and delivered the king's secret order to infiltrate Silla's Seorabeol and spy on state affairs.
Seodong gladly accepted and disguised himself as a hemp seller to infiltrate Silla and faithfully carry out his detection activities.
There are some conflicts with the actual records of events, this legend can also be an output of the historical policy of alliance between Silla and Baekje through marriage.