Metachronal rowing is a swimming technique used by many ecologically and environmentally important aquatic organisms such as shrimp and krill. Metachronal rowers sequentially stroke multiple bristled swimming legs or paddles in a back-to-front sequence in order to swim. The hydrodynamic interaction between paddling legs is regulated for different locomotion tasks such as hovering or forward motion. Moreover, the change in the shape of the leg and their porosity can play an important role in synergistic flow interactions among the paddles. This mode of swimming in nature spans the greatest range of Re up to 5 orders of magnitude. Here, we present our computational and theoretical work compared with previous experiments to understand the role of paddle geometry and kinematics and find why certain design elements are common among successful metachronal rowers. The final discussion will be provided regarding the presence of an overarching scaling relationship for metachronal rowing based on selective nondimensional characteristic numbers that can capture the underlying flow physics of the metachronal rowing modes.