Complex sentence: In January 1963 the sea froze for 1 mile (1.6 km) out from shore at Herne Bay, Kent; sea froze inshore in many places, removing many British inland water birds' usual last resort of finding food in estuaries and shallow sea.
Split into simpler sentences: In January 1963 the sea froze for 1 mile (1.6 km) out from shore at Herne Bay, Kent. The sea also froze inshore in many places, removing many British inland water birds' usual last resort of finding food in estuaries and shallow sea.