Boat stabilization system

A boat stabilizer system comprising:

• a first gyro stabilizer configured to be arranged inside a hull;
• a first fin stabilizer comprising a fin configured to be arranged outside the hull and move relative the hull;
• and
• a power transmission interconnecting the first gyro stabilizer and the first fin stabilizer,
• wherein the power transmission is arranged to transfer actuation energy, derived from precession torque of the first gyro stabilizer, to the first fin stabilizer to actuate the fin,
• wherein the first gyro stabilizer comprises a precessing element and the first fin stabilizer comprises a movable element connected to the fin,
• wherein the power transmission is arranged to transfer energy from the precessing element to the movable element,
• wherein the precessing element is a precession shaft and the movable element is a drive shaft connected to the fin,
• wherein the precessing element and the movable element are co-axial,
• wherein the power transmission is a shaft integrating the precessing element and the movable element, and
• wherein the drive shaft and the fin extend laterally from the hull.