It's basically a "convenience fee", to "benefit" us, so that rather than having to afford incidentals such as the fitness room or internet, there's an important fee that lumps everything together.
Skiing may be the most popular activity to do in Bulgaria. https://agglq2r4Tm3ot7aqz4immog7rxdvttnooxzy5nlo66ertwwzsnoq.cdn.ampproject.org/c/s/Visioneng.Godhosting.net%2Fbbs%2Fboard.php%3Fbo_table%3Donline%26wr_id%3D341391