blue bluebells countryside destination direction exercise flowers footpath Great Britain green Hyacinthoides natural nature path Pembrokeshire plants Skomer track trail travel united kingdom wales walk welsh wild England english fence field landscape meadow pastoral rural shade shadow sunlight Surrey trees wooden woodland autumn Betula birch bridleway conifer evergreen forest pine Pinus scots pine softwood tree trunk branches calm canal February peaceful reeds reflections river sky still sunny Sussex towpath tranquil water winter holly ilex peace quiet ramble arid barren brown bushes cliff clouds desert dry harsh hills Israel Judea Judean limestone mount mountains rainstorm rock sere severe stark storm vegetation country grass hike hikers madow South Downs summer walkers bank branch choice choose diverge fork green lane historical old route slope spring two