A mobile, wave motion-isolated, waterborne device having a platform with a plurality of support members extending beneath the platform configured to receive an articulated joint. The device further includes a plurality of corresponding clusters of spar buoys, wherein each spar buoy has an articulated joint at a first end of the spar buoy and a ballast operably configured at the second end. The articulated joint of each spar buoy within the cluster corresponds to a swivel footing configured to receive an articulated joint. The swivel footing itself includes an articulating joint. Each articulated joint of the swivel footing corresponds to one of the support members of the platform. The cluster of spar buoys can optionally move between a vertical orientation and a horizontal orientation. An optional movable ballast may be used in place of a stationary ballast. The invention also includes optional thrust/propulsion, steering, and damping features.