One of the most important parts of building a pond is digging the right depth. Your pond needs to be at least one to two feet deep. The specifics of the depth will depend on factors such as the placement of the pond and whether you plan on having fish. If you have fish in your pond, it will need to be at least two feet deep.

After you fill in your pool, you can add trees and plants that help stabilize the soil. You might decide not to fill it in at all and find another use for the sunken area instead. A few ideas include creating a seating area or garden inside the empty pool. Depending on its size, you could create a place to roller-skate or install basketball hoops for an unconventional court.

Koi fish should be in the shade and can’t be directly exposed to the sun. Consider building your koi pond in a shaded spot or hanging an awning over the top to control the amount of sunlight coming in. Learn how to design a landscape properly.

Yes, many brands make models similar to endless pools with a range of features. Some companies feature temporary aboveground pools that imitate the effect of permanent installations. Small home pool spas—or spools—as well as lap pools and pools without propulsion designs for water aerobics are also available.