The Grande Trail Serra d'Arga is organized by Carlos Sá Nature Events®. It has also the support of the Municipal Chambers of Caminha, Viana do Castelo and Vila Nova de Cerveira, the support of Dem, São Lourenço da Montaria, Estorãos, Arga de São João, Arga de Cima, Arga de Baixo, Gondar, Amonde, Orbacém, Vila Praia de Âncora and Afife.

29th September 2023 (Friday) // Vila Nova de Cerveira
04:00 pm – 10:00 pm – Race bib distribution (Vila Nova de Cerveira - Praça da Liberdade)
08:30 pm –Transfer to the athletes of 100km from Dem to Vila Nova de Cerveira
09:00 pm – Meeting Point GTSA Trail Ultra Endurance 100km in Vila Nova de Cerveira
10:00 pm –Start GTSA Trail Ultra Endurance 100km in Vila Nova de Cerveira
30th September 2023 (Saturday) // Dem
06:30 am – Race bib distribution (Dem)
08:00 am – Start Ultra Trail 45km
03:00 pm – Race bib distribution (Dem)
04:00 pm – Prize giving Ceremony GTSA Ultra Trail 45km and GTSA Trail Ultra Endurance 100km
07:00pm - End of the bib distribution
08:00 pm – Expected arrival of last athlete. End of activities.
1st October 2023 (Sunday) // São Lourenço da Montaria
07:00am - 09h00am – Race bib distribution (Montaria- near the start line)
08:45am - Performance of Folk dance group Montaria and Grupo de Bombos
09:00am - Departure Long Trail 27km
09:30am - Departure Short Trail 17km and Hike 12km
12:30noon - Departure GTSA Kids
02:00pm - Prize giving Ceremony Long Trail 27km and Short Trail 17km
04:00 pm – Expected arrival of last athlete. End of activities.
Athletes must go to the start line autonomously.