Turtle Lair sewer opening

The Turtles' "Sewer Sweet Sewer" was featured in almost every episode of the series, except for the Vacation in Europe sideseason.

It contains several rooms that they regularly use, including:

  • A lab for Donatello (which is accessible through his bedroom).
  • An eat-in kitchen.
  • A TV room.
  • A practice room for their ninjutsu training.
  • Splinter's bedroom.
  • A large hallway that leads to the Turtles' rooms.
  • Four small roomlike areas that the Turtles use as bedrooms.
  • A hangar for the blimp.
  • A small armory with spare weapons.