Se ofrecen clases de salsa gratuitas todas las noches en un lugar central de música ... | price: free…
A guess
An evening: movement, a little warm-up shyness and then loosening up. Probably people who like to dance, beginners welcome to join in. In Cusco, evenings gather around the Plaza de Armas and San Blas, with many travelers.
A guess from the kind of event, the hour and the city, not from the organizer.