The former railway tunnel is situated above the Portoroz in the nearness of the auditorium. Parenzana is the The path of health and friendship. It goes by the former narrow gauge track Parenzana, which ones connected Trieste and Porec. The railway line was more than 34 years a central link between Central Europe and Istria. It was 123 kilometres long. Travelling was possible only for the people who were richer. The path of friendship is called because it was made by the common decision of Italian, Croatian and Slovenian Communes