Surname of Spanish origin. Surname of a great Colombian sculptor and writer, whose full name was Rodrigo Arenas Betancur. In Colombia it is the name of a volcano of the Cordillera Central (Nevado del Ruíz). Plural of sand, which is a disintegrated mineral material, consisting of small grains of rock resulting from the rubbing and tapping of rolling stock. It is usually found on beaches, deserts and riverbanks. On the sea beaches they are the result of coral fractionation. An arena can also be a space to practice bullfighting or a closed and large area to hold sporting events with the presence of a large public.
