external fire escape gray grey hand rails metal outside rust rusty stairs steel steps strong sturdy weathered bridge cables mesh movement shade shadows slats steel mesh sunlight suspension bridge swaying swinging swinging bridge wooden flooring backdrop background foundational heap heavy light light brown lime limestone pile rocks rough rubble solid strength Tan textures ancient anton battle battlement castillo castle coruna defence defense defensive eu fortress galicia Look lookout old san Spain tourist turret vigilance watch advice black danger diamond-patterned handrails high inside interior metallic non-slip patterned rails ribbed sign warning yellow animal equus four Gower head hoof hooves horse horses landscape leg legs mammal mammalia mane moor nature ponies pony robust stand tail wales welsh couple Great Britain natural pair two circular corner dark diffused-light handrail intricate limited patterns shadowy silhouette spiral spiral-staircase spiraling spiralling staircase structure turning turns window wrought-iron beach beach cams beach guards breakwater cold depth foam fog gulls horizon lasting Netherlands ocean powerful salt salt water sea shipping summer terneuzen water wave westerschelde wet winter wood zeeland