Confluencia de los ríos Gargáligas y Alcollarín Nature · Rena, Vegas Altas, Badajoz Image of Rena, not of the place itself. The Gargáligas and Alcollarín rivers meet within the municipal term of Rena, and the Ruecas also flows through it, in an area of river-valley plains with a mountain range reaching 384 meters. Photo: Axel Cotón Gutiérrez (CC BY-SA 4.0) What to see and do in Rena