aloe aloe vera barren cliff dry flower growth rocks rocky stone stoney wilderness desert egypt hill hills holy mountain mountains rock sinai stones trees tourists beach coastal coastline Cornish cornwall England english Great Britain natural nature sand sea shore view water worn biotype bushes ecology euphorbia Greece Greek habitat harsh hillside karst landscape limestone plants rough spring aquamarine bed blue blue water clear floor Maddalena Islands ripple Sardinia sea bed seawater transparent alpine chill cold colorado ice national park peak peaks snow snowy storm timberline winter candle carved chiselled glass green hope inscribed love painted pebbles reflective rounded shiny smooth textures unlit candle desert life desert light desert rocks found in sand in the desert no life no people