Cay Sandstone or “Beach Rock” (15) Published February 17, 2013 at 2240 × 1700 in Cay Sandstone or “Beach Rock” Cay Sandstone or “Beach Rock” (15) – Eroded surface of massive form of “Beach Rock” on the shore at Normanby Island, one of the Frankland Islands group, Queensland, Australia. P1180632aBlog15 About these ads