Balearic Islands eroded erosion formations limestone Lluc majorca Mallorca natural nature pleated rock shapes Spain striated striation trees worn buttercups field flowers grasses green landscape Lofoten Islands meadow mountains norway norwegian plants ranunculus summer wild yellow Umbelliferae umbellifers verge wayside white beach coastline Cornish cornwall England english Great Britain ocean sand sea shore surf surfing tide water waves algae cliff coast marine Pembrokeshire rockpools rocks seaweed united kingdom wales welsh conifer forest pine rhodedendron rhododendron shrubs spring Surrey understorey understory woodland Apulia blue chalk danger Gargano Italy layers Puglia shingle