NOVELTY - The generator has a surface float (1), a submersible reaction body (2) of variable buoyancy suspended from the float by a connecting line (3), an energy converter (5), and a spring (6) directionally biasing the reaction body relative to the float. The reaction body can assume a submerged operating configuration and a floating surface configuration. The buoyancy of the reaction body can be adjusted by filling the internal volume (7) of the body with seawater or air.    USE - Generator for converting wave motion in body of water into useful energy. Can also be used for an apparatus for generating wave power (claimed).    ADVANTAGE - Having surface float on water surface during operation allows float to be made of non-rigid inflatable material which helps reduce cost and avoids damage when involved in accidental collisions with surface vessels while minimizing visual impact of generator. Suspending reaction body and energy converter from connecting line well below sea surface allows all complex parts of generator to be well away from forces that can be potentially produced by surface waves. Generator can be self-protecting when subject to extreme conditions, since maximum force that can be placed on reaction body is equivalent only to total buoyancy of float. Total buoyancy of float can be set equal to spring force at maximum upward stroke, ensuring that generator can not be jarred by very large waves. Breaking waves are unable to place abnormal loads on generator even when such waves crash down on float, since connecting line can be flexible enough so as not to transfer compressive force. By using spring, connecting line can be kept taut at all times during normal conditions. Generator installation or service and removal can be made simple, by pre-installing mooring lines and power cable to generator or by disconnecting mooring lines and cable, and by preferably using stable service platform with all serviceable components clear of water to enable easy access for maintenance. Reaction body can have streamlined hull-like shape to improve ease of towing along sea surface. Flexible structure to float would make it more resilient to forces of surface waves.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) an apparatus for generating wave power; and    (2) a method of generating power.    DESCRIPTION OF DRAWING(S) - The drawing shows the perspective partial cut-away view of a generator.    Surface float (1)    Reaction body (2)    Connecting line (3)    Energy converter (5)    Spring (6)    Internal volume (7)