Cardiff-by-the-Sea, usually referred to as Cardiff, is a beach community in the incorporated city of Encinitas in San Diego County, California. The Pacific Ocean is to the west of Cardiff-by-the-Sea, the rest of incorporated Encinitas is to the east and north, and a beach and lagoon to the south. Cardiff is home to a few well-known surf spots, such as Swami’s and Cardiff Reef. Cardiff Reef and nearby surf spots, Pipes and Seaside Reef, are famous for their smooth and consistent wave shape. When the tide is low, a flat rock reef is revealed that extends 50 yards from shore. Exploring these tide pools is a popular activity for visitors of Cardiff.