DStretch Version, Painted. Petroglyph G13 Khatm Al Melaha, Kalba, Sharjah. A bull like animal, but unknown. Carvings extremely difficult to see.Khatm Al Melaha is a spectacular archaeological site on the coast of the Oman Sea near Kalba in Sharjah, UAE. It is one of the largest rock art sites in the UAE. There are also stone houses, a shell midden, stone tombs and other features that date this site has having occupations from at least the early Holocene to the 19th century.