first trip of the year
Refers to the first journey or travel undertaken in the new year, often with a sense of freshness or auspiciousness.
正月に初旅に出かける家族が多い。
Many families go on their first trip of the year during the New Year holidays.
今年の初旅は京都に決めた。
I decided on Kyoto for my first trip of the year.
A compound of 初 “first” and 旅 “journey,” specifically the first journey undertaken in the new year.