Koi carp fish pond in a garden or yard with a metal framework cover as protection against herons. There are lilies and water plants and koi carp in the pond. Photos
Happybuy Pond Cover Dome, 9x12 ft Garden Pond Net, 1/2 inch Mesh Dome Pond Net Covers with Zipper and Wind Rope, Black Nylon Pond Netting for Pond
Garden Pond Cover/ Metal Pond Cover/ Garden Decorations/ Ripple Effect Pond Cover/ Garden Water Feature/ Outdoor & Gardening Garden Feature
VEVOR Pond Cover Dome 10 ft. x 14 ft. UV-Resistant Nylon Mesh Garden Pond Netting with Zipper and Wind Rope for Garden, Black HYBHZ10X14FT00001V0 - The Home Depot