A view of NGC 5238 from our HST ACS-WFC photometry. Left panel: CMD of the entire sample. The main evolutionary phases are labelled, and the RGB selection box is plotted in red. Right panel: Map of the RGB stars in our field (RA and Dec in degrees). Each star is colour-coded according to the local density. The main tidal features and all the star clusters possibly associated with them are labelled; they appear as local overdensities on the map. Please note how prominent the overdensity associated with C1 is. The two diagonal under-dense stripes correspond to the gaps between the ACS-WFC CCDs in the two WFC images used to build our mosaic image. In these stripes, the effective exposure time is lower than elsewhere.