The town of Onda is located inland the province of Castellón, in the Region of Valencia, scarcely 25 km from the city of Castellón and quite close of the main seaside tourist attractions. Likewise, it can be easily reached from Valencia, which is only 65 km away, and also from the Manises airport, just at 73 km of distance.
Covering a surface area of 108, 84 km2, Onda is one of the largest territories of the entire province. Situated in a privileged location, it lies at the lower basin of the Mijares River, along the mid-area between the Natural Park of Sierra Espadán and the coastal plain of la Plana.
Its typical climate is an exceptional dry Mediterranean weather, with an annual average temperature around 14 or 15 ºC. Summers are dry and rather warm and winters are mild. It stands at 192 meters above sea level and its population is estimated at 26.000 inhabitants.
Although its origins date back to the Iberian period, Onda achieved its greatest magnificence during the Islamic settlement, whose culture left an outstanding natural and historical heritage being its castle the most valuable jewel, which excels from the Old Town.
Both the Castle and the Old Town were declared Historic and Artistic Site and Heritage of Cultural Interest in 1967.