海うみ開びらき

noun

opening of the beachgoing season

Refers to the official start of the summer beach season, often marked by a ceremony or event. Typically used in news and travel contexts.

• 今年ことしの海うみ開びらきは7月がつ1つい日たちです。

  The beach season opens on July 1st this year.

• 海うみ開びらきの日ひには、安あん全ぜん祈き願がんの神しん事じが行おこなわれる。

  On the day of the beach opening, a Shinto ritual is held to pray for safety.