Talcott Shoal

Talcott Shoal is a large shoal off the northwest corner of Santa Rosa Island, about a mile out from the western end and named on the 1882 U.S. Coast Survey chart. The shoal is not one dive but a whole field of them, a series of parallel rocky ledges that run along the island shoreline and spread across several square miles of water. Each charter boat keeps its own marks on the deeper holes and ledges, and a day on the shoal often runs three or four dives across different parts of the structure. Depths run from twenty feet at the shallowest ridges to eighty or more in the troughs between.

The shoal is the long-standing lobster ground for the back side of the islands. The terrain resembles a topographic map underwater, with the ridges running like contour lines and the troughs cut between them at predictable spacing. Lingcod hold on the deeper ledges, sheephead and kelp bass move through the kelp-covered shallows, and the long parallel structure sheltered abalone before California closed the recreational fishery. Visibility runs from twenty to sixty feet, swinging with the day's swell and the time since the last upwelling event.

Giant kelp anchored on the shallower ridges and growing up through the water column to the surface makes Talcott Shoal a kelp forest biome. A rocky reef biome distinct from the kelp runs through the ridges and the deeper rock in the troughs between them, with the cracks and undercuts where the lobsters hold.

Access is boat only. Charter dive boats run to Talcott Shoal from Santa Barbara and Ventura, with the crossing from Santa Barbara about three hours under power. The site sits exposed on the northwest face of Santa Rosa with no land between it and the open Pacific, and it is the most weather-dependent of the popular Santa Rosa dives. A settled morning with low long-period swell is the safe window, and the shoal closes on any moderate or building northwest swell.

Fishing and spearfishing are legal here under standard California recreational rules. No MPA covers Talcott Shoal. The Carrington Point State Marine Reserve sits east on the same northern shore, the South Point State Marine Reserve is around on the south side, and Skunk Point State Marine Reserve covers the east end of the island. Talcott Shoal has no reserve overlay.