(EN) An offshore bulk fluid transfer system and method for its deployment in both shallow and deep water. The system is adapted for transfer of fluids between a tanker and another location. Deep water embodiments of the invention provide for a three and four stair step method for deploying the base on the sea floor. Additionally, a method of retrieving the system from the sea floor is disclosed. The offshore bulk fluid transfer system comprises a base (20) and buoyancy tanks (21, 22) attached to the base providing flotation for the system during its transportation to a mooring location. Buoyancy tanks (21, 22) are adapted for flooding to allow the system to be deployed on the sea floor.