Featured Koi Pond: approximately 20’ x 10’ x 4.5’ deep (not including the waterfall). Water recirculates through a buried pipe between the pond’s filtration system & the 10’ waterfall. Native stone for the walls & sidewalk completes the pond design with a natural feel. The native stone wall height & depth of water protect the Koi from predators. Both heater & filtration system are hidden under the native stone but have an easy access design.