Serbonian Bog
（重定向自Serbonian）
Serbonian Bog (Arabic:مستنقع سربون) relates to Lake Serbonis (Sirbonis or Serbon) in Egypt, as described by Herodotus. Because sand blew onto it, the Serbonian Bog had a deceptive appearance of being solid land, but was a bog. The term is metaphorically applied to any situation in which one is entangled from which extrication is difficult.