Interacting pair of CAVITY35843, 35844, and their neighbour. Panel A: Isaac Newton Telescope (INT) deep optical image of CAVITY35843 and CAVITY35844 (marked with an orange box) and CAVITY38680 (marked with a green box) in SDSS r-band filter. Panel B: Zoom-in view of CAVITY38680 using DECaLS data. This dwarf galaxy is located at a projected distance of 340 kpc from CAVITY35844. Panel C: Zoom-in view of CAVITY35843 and CAVITY35844 (marked on the image) from DECaLS survey (left-hand panel) and INT g+r image (right-hand panel). In both images, the two bright cores of the two interacting dwarfs and the tidal tails are visible. A fine dust feature in the pair central region is better resolved in the DECaLS image, while LSB features (with μ>25.5 mag arcsec⁻², marked with arrows in Panel D) around the interacting pair are better visible in the INT colour image. Panel D: Surface brightness map of the interacting pair using the g-band INT image. Contours from inside out indicate regions with surface brightness from 20 to 27 mag arcsec⁻² and with steps of 1 mag arcsec⁻². Panel E: g-r colour map of the interacting pair, constructed using INT data. Contours are the same as in Panel D. In all panels, north is up, and east is left.