The Costa del Sol, also known as the "Sun Coast," is a coastal region located in the province of Málaga in Andalusia, southern Spain. The region has a long history dating back to the Phoenician and Roman times, but it wasn't until the 20th century that it became a popular tourist destination.

In the 1950s and 1960s, the Costa del Sol saw a surge in tourism as international visitors discovered its sunny climate, pristine beaches, and vibrant culture. This led to the development of tourist-oriented infrastructure, including hotels, restaurants, and shops, which helped to establish the region as a popular holiday destination.

In the 1970s and 1980s, the Costa del Sol became a popular destination for foreign investors, who were attracted by its warm climate, low cost of living, and high quality of life. This led to the construction of many new homes and resorts, which helped to further cement the region's reputation as a premier tourist destination.

Today, the Costa del Sol is one of the most popular tourist destinations in Spain, attracting millions of visitors each year. Its reputation for sun, sea, and sand has made it a popular destination for both local and international tourists, and its popularity continues to grow as more people discover its many attractions and amenities.