Pebbles PENTAX K-5 II s, 135.0 mm, f/16.0, 6 sec, ISO 100 ⋅ smc PENTAX-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR ⋅ CC-BY-NC-ND-4.0 Sea-washed pebbles on the shore of the Seven Sisters 50.759, 0.15