Abstract: A combination umbrella anchoring, stabilizing, and accessory holding assembly facilitates anchoring of an umbrella in shallow water along a shoreline. A tubular, main support rod has a tapered, open-ended, insertion end to facilitate insertion into a seabed while encouraging entry of seabed material therein for stability, and an opposite distal attachment end configured as an umbrella holder. A multi-armed support structure releasably attachable to the attachment end of the main support rod is adapted to securely hold beverage containers, and functions to support a planar tabletop thereon. Accessory supporting components depend downwardly from a lower surface of the tabletop to support hanging accessories. A stabilizing plate mounted about, and releasably secured to, the main support rod functions to stabilize the assembly in a generally upright orientation, while acting against any undesirable upward force, e.g., caused by wind acting against an umbrella canopy.