Marisol Kelp Forest Preserve

The Marisol Kelp Forest Preserve is a community-run marine protected area covering roughly a square mile of reef and giant-kelp canopy off the mouth of the cove. The town voted to establish it in 1979, making it one of the earliest locally governed preserves on this stretch of coast.¹

The Kelp Forest

Giant kelp anchors to the rocky reef and grows toward the surface fast enough to form a floating canopy by late spring. The forest shelters garibaldi, señorita, sea hares, and a resident population of octopus in the deeper cracks. Sea otters pass through in winter but do not den here.²

Canopy cover swings widely between years. Warm-water seasons thin the kelp and let urchins graze the holdfasts; cooler, nutrient-rich years bring it back within months.

Monitoring

Volunteers survey four fixed transects each quarter, counting kelp density, urchin barrens, and indicator fish. The dataset is one reason the preserve is cited in regional coastal reports out of proportion to its size. Results feed the town’s annual open meeting on the preserve charter.

Visiting

The best window is from the tide pools at Lantern Cove at low tide, or by kayak from the town pier. Diving and fishing are restricted inside the boundary; the rules are posted at both the pier and the cove stair. The slopes above the reef, part of the same protected corridor, are reached from the Summit Ridge Trail.