Estero Bay

Estero Bay is the broad central-coast bay between Point Buchon to the south and Point Estero to the north, a roughly 15-mile crescent of open water along the San Luis Obispo coast. Cambria, Cayucos, and Morro Bay line the shore, and the bay opens west to the Pacific. The pin for this spot sits roughly 2.5 miles offshore between Cayucos and Cambria, in the central nearshore zone where kelp beds, rocky shoals, and seagrass habitat are all reachable in a single trip.

Wave energy reduced by the headlands and tidal mixing pushed in from the Morro Bay estuary mouth make the protected nearshore water a bay biome, and the eelgrass on its soft bottom, joined by the surfgrass on the intertidal rocks at the Cayucos Point and Estero Bluffs cliff stretches, adds a seagrass biome. Along the Cayucos Point and Cambria offshore stretches, patches of giant and bull kelp anchor on rocky bottom and grow up through the water column to the surface, making those sections a kelp forest biome. The bare rocky shoals and reefs distinct from the kelp, including the Cayucos Point reef chain, round out a fourth biome: rocky reef.

Departure points are spread along the shore. Morro Bay Harbor on the south end runs charter and private boats to the offshore reefs and kelp beds. Kayak paddles from Cayucos State Beach reach the Cayucos Point kelp on calm days, and Leffingwell Landing on the north end is the only formal shore launch for the Cambria stretch. Kayak fishing in the protected zones, scuba and freediving in the kelp and on the reefs, and spearfishing in the kelp are all common. Wildlife viewing is regular, including migrating gray whales in winter.

No MPA covers this part of Estero Bay. The Point Buchon SMR sits south of the bay's southern boundary, and the Cambria SMP covers only the Moonstone–Leffingwell stretch on the north shore. Hook-and-line fishing and spearfishing are legal across the open bay under standard California regulations. Swell from the open Pacific is partially reduced by the Point Estero and Cambria headlands but still reaches the bay, and currents are moderate. The site is best on a calm window with a low to moderate swell.