Complex sentence: The lack of wood is somewhat surprising, since while there were no trees growing there, driftwood frequently washes up on Falkland beaches, although this may be accounted for by the sheltered nature of Bold Cove.
Split into simpler sentences: The lack of wood is somewhat surprising, as while there were no trees growing there, driftwood frequently washes up on Falkland beaches. This may be accounted for by the sheltered nature of Bold Cove.