When to use picnic in Korean
Korean: 소풍[ so-pung ]

When to use it
A picnic (소풍) is a fun outdoor trip where people eat, relax, and enjoy nature. It is often used for a family outing, a school event, or a weekend trip with friends. People usually bring food, drinks, and a mat for a picnic.
Example sentences
오늘은 가족과 공원에 소풍을 가요.
Today I am going on a picnic to the park with my family.
학교에서 봄 소풍을 갔어요.
Our school went on a spring picnic.
소풍 날에는 김밥을 자주 싸요.
We often pack gimbap on picnic day.
친구가 "주말에 소풍 갈래?" 하고 물었어요.
My friend asked, "Do you want to go on a picnic this weekend?"
소풍 돗자리를 가게에서 샀어요.
I bought a picnic mat at the store.
우리는 바다 근처로 소풍을 갔어요.
We went on a picnic near the sea.