Sailors would take extremely complicated routes to travel the seas here in order to avoid the many forbidden areas. The names of which are as follows: * The Forbidden Triangle * The Forbidden Square * The Forbidden Pentagon * the forbidden Circle * the forbidden Hexagon * the forbidden Parallelogram * the forbidden Octagon * the forbidden Trapezoid * the forbidden Rhombus * the forbidden Dihedron * the forbidden Ellipse * the forbidden Dodecagon * the forbidden Ovoid * the forbidden Icosahedron * the forbidden Cardioid * the forbidden Torus * the forbidden Lemniscate * the forbidden Parallelipiped * the forbidden Frustum * the forbidden Helix * the forbidden Oblate Spheroid * the forbidden Convex Region