The Ballona Lagoon is a soft-bottomed channel and 16-acre (65,000 m2)[1] tidal marsh in the Marina Peninsula neighborhood of Los Angeles that feeds the Venice Canals with water from the Pacific Ocean via a tide gate.As described in a 1981 legal filing: The Lagoon in its present configuration is a narrow elongated area covered by very shallow water and is separated from the ocean by a strand or bar of beach sand.That additional area is now dry land as a result of filling and development and natural conditions.”[7]The tide gates replace as much as 95 percent of the lagoon’s water daily.[11][12][13] Improvements included viewing platforms, fencing, signage, native California plants authentic to the pre-development ecology of the area, dredging six feet (1.8 m) down at the tidal inlet to create fish spawning habitat, and building an island for nesting birds.[12] Further refurbishment took place in 2011, when the city added dog fencing, stabilized the banks of the waterway, and reseeded the rare wildflower called Orcutt’s yellow pincushion.