Surfside is a small gated community with three rows of houses, lettered A, B, and C. Surfside is part of the city of Seal Beach, California.
Surfside Colony was begun in 1929 as an oceanside resort community. It was incorporated with the state of California in 1930. There were originally plans to develop both sides of Pacific Coast Highway (with D and E rows of houses on the east side), but these plans never materialized. A tunnel, which still exists though it is inaccessible, was built under Pacific Coast Highway to facilitate easy transit back and forth.