Saba Bank in the eastern Caribbean is designated an IMO Area to Be Avoided and Particularly Sensitive Sea Area; entry and anchoring are restricted for vessels.

Original warning text

EASTERN CARIBBEAN SEA.
ST. KITTS AND NEVIS.
1. SABA BANK HAS BEEN DESIGNATED AS AN IMO
   ADOPTED AREA TO BE AVOIDED (ATBA) AND
   PARTICULARLY SENSITIVE SEA AREA (PSSA).
2. TO AVOID THE RISK OF POLLUTION AND DAMAGE
   TO THE ENVIRONMENT, ENTRY IS PROHIBITED FOR
   VESSELS OF 300 GROSS TONS AND GREATER, AND
   ANCHORING IS PROHIBITED FOR ALL VESSELS,
   IN AREA BOUND BY
   17-27.06N 063-56.14W, 17-29.00N 063-55.09W,
   17-27.94N 063-43.32W, 17-38.03N 063-27.41W,
   17-43.35N 063-32.74W, 17-45.98N 063-29.98W,
   17-40.34N 063-21.10W, 17-30.88N 063-10.92W,
   17-23.80N 063-11.25W, 17-16.27N 063-15.85W,
   17-13.44N 063-26.89W, 17-10.55N 063-41.81W,
   17-20.85N 063-49.89W.
   VESSELS VIOLATING THESE REGULATIONS WILL
   RECEIVE A FINE.
3. FOR FURTHER INFORMATION, CONTACT DUTCH
   CARRIBEAN COAST GUARD, PHONE: 599 9463 7620,
   599 9510 0913, EMAIL: RCC.CURACAO@MINDEF.NL.
4. CANCEL NAVAREA IV 1518/24.