title: Rubicon (Belgium)
text: # Rubicon (Belgium)
  
  The Rubicon is an underground river in the province of Liège in the northern-central part of Belgium. It flows through the Caves of Remouchamps, where the world's longest underground trip by boat in a cave is possible 600 metres (2,000 ft).
  
  50°29′02″N 5°43′03″E﻿ / ﻿50.48389°N 5.71750°E﻿ / 50.48389; 5.71750
  
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