Complex sentence: Bigbury Golf Club is an 18-hole course situated off the B3392 midway between Bigbury and the coastal village of Bigbury-on-Sea, just offshore of which is Burgh Island.
Split into simpler sentences: Bigbury Golf Club is an 18-hole course situated midway between Bigbury and Bigbury-on-Sea. The village of Bigbury-on-Sea lies on the coast and just offshore of it is Burgh Island.