The sign clearly reads "CALLE SAN JUAN," which indicates a Spanish-speaking country. The architecture and lush, tropical vegetation suggest a location in South America, likely Colombia given the common use of such signage styles in urban parks. The bike path and the surrounding mountainous terrain in the distance align well with the geography of Medellín. I am fairly confident in this assessment.

Country: Colombia, City: Medellín.
Confidence: High.

then: guess