Castilla la mancha Cuenca europe landscape Spain blue boat harbour pear ship sky travel walk water hill mountain nature road rock serpentine birds eye blue sky british columbia canada panaroma Penticton tower amsterdam boats canal canals gracht house houses light Netherlands night bus-stop dusk green ocean palms sea seashore street beach gulf hills mountains spa tourists town bridge city England Gherkin hall landmark London thames view bedrock grass Natural landscape plant tree break broken cold crack danger fissure fracture glacier ice norway slip slippery