swift mountain stream in a green valley

aura bank beautiful botany boulder brook cascade clean creek czech dale deep eco ecology eden emerald endangered environment fern flowing foliage forest fresh giant glow golden grass green greenery growth highland hiking jungle karkonosze krkonose landscape light lush marsh meadow moist moss mountain mountains nature outdoor paradise park peaceful plant pool primeval pure rain rapids rays republic reserve river rivulet rock season simple spring stone stream summer sunny sunshine swift tree vale valley virgin water wet wetland wilderness wilds wood