SS Peralta is a concrete floating breakwater in Powell River in British Columbia.
She was built as a concrete oil tanker by the San Francisco Shipbuilding Company, and was launched in February 1921.
She was bought by Macmillan Bloedel in 1958 and moored as part of a giant floating breakwater in Powell River to protect the company's log storage pond.
With the downsizing of operations at the pulp mill in late 2000, it was proposed to sink the Peralta as an artificial reef, but this was later rejected.
However, after the scuttling of YOGN-82 in 2018, a fellow barge completed in 1944, it is now proposed to sink it as an artificial reef at a later date.