Largo Green (LG) designed & built a deep KOI pond with waterfalls. Client wanted it partially visible from above, & extending under the cover of the wood deck. LG dug a 4' deep shell, added liner & rebar, then thick concrete. LG built a small trickling waterfall concealed under deck, then a 2nd waterfall in front. Both created ample oxygen flow. Feeding colorful fish over the deck railing, was a treat, especially for children & guests.