seachange
A movement of people from cities to rural coastal areas.
uncountable
The seachange shift was initiated by retirees from the late 1960s although it did acquire a spiritual status when embraced by the boomers from 2001 onwards. […] The drivers of treechange and seachange are the same: people wanting a simpler life in a pleasant town with all the amenities not too far from their interests in the city.
An act of relocating from an urban to a rural coastal community.
countable
Where it comes from
From sea + change; sense 1 (“movement of people from cities to rural coastal areas; act of relocating from an urban to a rural coastal community”) was possibly coined by the Australian author and demographer Bernard Salt in his book The Big Shift (2001), based on the title of the Australian television series SeaChange (1998–2000 and 2019) about a lawyer who moved with her daughters from the city to a coastal town.
Related words
Adapted from the Wiktionary entry seachange (CC BY-SA 4.0).