Complex sentence: Saint Nectan's Kieve is believed by some to be a sacred place, so, numerous ribbons, crystals, photographs, inscriptions, prayers and other devotions now adorn the foliage and rock walls near to the waterfall.
Split into simpler sentences: Saint Nectan's Kieve is believed by some to be a sacred place. As such, numerous ribbons, crystals, photographs, inscriptions, prayers and other devotions now adorn the foliage and rock walls near to the waterfall.