autumn autumnal barbed calm fall fence fog foggy lake leaf leaves loch Loch Ard mirror mist misty moody peaceful post reflect reflection scotland scottish still trees Trossachs water wire animal countryside Downs England farm field flock grass graze grazing landscape mammal meadow peace quiet rural sheep sky south summer Sussex track trail tranquil verge way advice alert announcement appropriate-behavior appropriate-behaviour aware awareness black care careful caution communicating communication considerate consideration danger directions informing lettering letters red sign signs warning white wording words country walk distance footpath Great Britain green journey natural nature path ramble shadow silhouette South Downs spring stroll sunlight three tree uk united kingdom walk walkers bridleway clouds english exercise farmland long distance November real estate view winter appearance barbed-tape barbed-wire barbs barricade barrier double fencing gray grey injury metal protection razor-sharp razor-wire restraint security security-fence sharp silvery spirals strands twists alone crataegus deformed hawthorn hilltop isolated lone national park single windswept