Costa Martiánez is a seawater spa designed by César Manrique in Puerto de la Cruz. The complex includes a large lagoon, several swimming pools, garden areas and sculptures among volcanic rock.
The central lagoon holds around 27,000 cubic meters of seawater. There are also four pools for adults and three children's pools.
Six sculptures by César Manrique are spread across the complex. Traditional Canarian design elements and native plants are also part of his design.