Arenia. (2 reviews). Arenia CasinoHotels near Instituto de Investigaciones Culturales - Museo Casino Golden LionHotels near Bosque de la Ciudad de MexicaliHotels near Momentours. . Add Review. Casinos. Arenia. Gyms · Massage · Things to Do · Mexicali, BCN · Arts & Entertainment · Casinos. The plumbing is pretty rustic. 2 reviews and 2 photos of Arenia "I was a loyal customer for five years until August first of when I was sitting on a bench waiting for my vehicle to. Unclaimed. A really special spectacular place if you are OK with camping. Definitely need to bring your own tent and food and drinks. Directions.