What is S4D?
S4D is an event of civil-military coexistence and cooperation that is unique in Spain due to its duration, its objectives and the high volume of participation it seeks.
It is a socio-sporting, cultural and touristic event of great importance, with international projection.
It basically consists of carrying out four non-competitive marches over four consecutive days, with different routes and distances adapted to people of all conditions.
It is more than a simple physical activity because during those four days different complementary actions will be carried out such as exhibitions of material or military units, musical, folkloric, gastronomic and tourist promotion exhibitions, conferences, art or other exhibitions, concerts , informative days, parades and civil and military ceremonies, etc.