Thornhill Broome Beach
Point Mugu · Ventura County · California
Visibility Breakdown
Visibility by position
Solid = diver report · outlined = today's forecast
Break Zone: The range of water where the waves break and sediment is stirred up.
Post Break: The range past where any waves are forming, where the water starts to have a significant increase in visibility. There might be some sediment here, but swell energy is diffused and the water is calmer.
Open Water: This zone is far out enough from the shore that the water is at its clearest. It’s deep enough that sediment is not disturbed by the wave energy at the surface. Haze can sit near the surface, so the water is usually clearer the deeper you go.
Through the day
Today's visibility readings at this spot, shown at the hour each one was taken.
Every bar is a reading for the Post Break zone.
This chart shows measured diver reports only.
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Coastal Bulletin
About Thornhill Broome Beach
Why it reads 8–12 ft
Today's forecast runs
Dawn is the clearest window. A late-morning onshore builds surface chop and gives up a few feet by the afternoon.
Medium confidence
7-Day Forecast
Today is the live headline above. Tomorrow onward is the algorithm's forecast from predicted swell, wind, and rain, updated each morning and at 6 PM Pacific.
Map and parking
Point Mugu, CA 93042
California State Parks campground at Thornhill Broome inside Point Mugu State Park — a single line of approximately 70 reservable sites along the shoulder of Pacific Coast Highway between the highway and the sand. Each site has a picnic table and fire ring. Vault toilets only; no water, electrical hookups, or showers. Day-use parking along the shoulder. Reservations through ReserveCalifornia six months in advance.
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See the offshore water on Pelagiscape →Clarity, temperature breaks and kelp off this beach.
About Thornhill Broome Beach
Thornhill Broome Beach is the beachfront campground at the northern end of Point Mugu State Park, formerly known as La Jolla Beach and renamed for Mary Thornhill Broome. The campground runs as a single line of roughly 70 reservable sites along the shoulder of Pacific Coast Highway, set on a narrow strip between the highway and the sand. Each site has a picnic table and a fire ring, and the campground is otherwise primitive: vault toilets only, with no water, no electricity, no showers, and no dump station. Reservations open six months in advance through ReserveCalifornia. The La Jolla Group Camp, inland of the highway, shares the Thornhill Broome check-in. The Big Sand Dune sits directly across Pacific Coast Highway from the campground, a steep coastal dune climb used widely as a fitness workout and as a sunset viewpoint.
Species found here
Researched habitat and range candidates. A listed species may be seasonal or depth-limited; this is not a confirmed sighting at this location.
Spot strategies
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