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This is the page about the sea monster from Goo Lagoon. For other uses, see Sea monster (disambiguation).

The sea monster is a creature in Goo Lagoon. He only appears in the episode "SpongeGuard on Duty."


He is light green with a light yellow underside. He has purple ears and wears glasses.


  • Books
  • Goo Lagoon

Role in episode

SpongeBob calls everyone out of the water and they wonder what is going on. He tries to make several excuses and then says there were sea monsters in the water. The sea monster appears and says that they are quite friendly. The monster makes a brief sentence and walks away, slapping SpongeBob with his tail.