Complex sentence: In 1967, the Royal Fair moved again, once more due to the demands on land in Algeciras, to a then-undeveloped area on the outskirts of the city next to the Carretera de Málaga, in the area called Las Colinas.
Split into simpler sentences: In 1967, the Royal Fair moved again, once more due to the demands on land in Algeciras. It moved to a then-undeveloped area on the outskirts of the city next to the Carretera de Málaga, in the area called Las Colinas.