It is a great day in the local festive calendar .
In Villanueva de la Sierra ( Extremadura ) , where the first Arbor Day in the world was held in 1805 , it is celebrated , as on that occasion , on Tuesday Carnaval .
Arbor Day is a great day in the local festive calendar .
In Villanueva de la Sierra ( Extremadura ) , where the first Arbor Day in the world was held in 1805 , it is celebrated , as on that occasion , on Tuesday Carnaval .