Martes de Carnaval.

Shrove Tuesday, Pancake Day.

Shrove Tuesday: the day before the Christian period of Lent begins.
Cambridge Dictionary Online.

 In News:

"Outside the UK Shrove Tuesday is celebrated as Mardi Gras or Carnival, which attracts millions of party-goers onto the streets of Europe."
The Week UK.

"Do any of us really need an excuse to eat pancakes? Probably not, but Shrove Tuesday — also called Fat Tuesday and Pancake Day ..."
Huffington Post Canada

A las afueras/alrededores de la ciudad/del pueblo

On the outskirts of the city/town.

I live on the outskirts of London.
Cambridge Dictionary Online

 In News:

"The body of an eight-year-old girl, who was allegedly raped and murdered, was found in an isolated place near Hoskote on the outskirts of the city, police said. "
Business Standard.

"Everybody is panicking and trying to flee the area," Idris Abubakar, a resident of Polo suburb on the southwestern outskirts of the city,"
Reuters