Big Basin Redwoods State Park - All You Need to Know | A Memory and Pictures
Big Basin Redwoods State Park - All You Need to Know

Big Basin Redwoods State Park - All You Need to Know

United States
United States

When Is the Best Time

This was my hiking guide for Big Basin, but 97% of the State Park got destroyed. The well-developed headquarters, the campgrounds, the picnic areas, shops, the outdoor theatre, all infrastructure from water to electricity and internet, nothing is left. More than 18.000 acres were burnt to the ground in August 2020. The good news was the old redwoods were more resilient than expected and had already started to regrow with fresh green needles at black branches and trunks.

Redwoods before the fire in 2020
Up to 2000 years old and more than 300 feet tall.

Luckily, no one died - all visitors, campers, and park staff more than 1000 people got evacuated in three hours because the fire rolled quickly into the park during the busiest season.

There are plans to reestablish this wonderful State Park with the public's input. Prioritized is a return to fully open the park. Some campgrounds will be relocated, a shuttle introduced and trails newly developed.

The huge canopy of several redwoods.

Big Basin Redwoods was a popular State Park close to San Francisco, and it will be again an awesome place for camping under the astonishing trees. This article and pictures are dedicated to the oldest State Park in California, 65 miles south of San Francisco. 

A burnt redwood from hundreds of years ago
This tree survived repeated fires in the past. The outer bark is up to a foot thick.

However, the good news is scientists believe 9 out of 10 majestic redwoods survived, but none of us will see this park in its glory again; it simply takes much longer than a lifetime.

Is Big Basin Open?

The Sempervirens Trail in Big Basin
A hiking trail amongst these old-growth trees before the fire.

Most of Big Basin is still closed indefinitely because of hazardous tree removal, and falling trees are a major concern. Hundreds of people are working here to develop a safe entrance and a memory of what happened for future generations. The difference after the devastating fire is profound, with blackened trunks everywhere. Some places are a lot thinner now. It is a big task to get the State Park fully reopened. 

Open to the public is Waddel Beach and parking, the Rancho del Oso Nature and History Centre, and the Marsh Trail. Later in the summer, limited park access for day use by an online reservation system is planned together with the reopening of Highway 236.

Weather in the Big Basin Area

The Big Basin Entrance Sign
The entrance sign was also burnt.

The wet season starts in November and lasts until February, with most precipitation in January. It receives three times the rainfall of the Bay Area. This rain is much needed by the redwoods after the dry summer. The average night temp is around 41°F/5°C, and the day temp under 60°F/15°C. 

The dense canopy of Big Basin before the fire
The thick understorey

Summer from June to September is primarily dry, with dense summer fog in the morning. The mist provides the trees with moisture. Nights temps are much cooler than in the Bay Area with around 49°F / 9°C and day temps about 74°F/23°C. In the hot summer months, temps frequently climb up to 86°F/30°C and more.

Decreasing Fog

A butterfly in the former Big Basin

Such devastating fires can occur in the summer through lightning, but the iconic fog where all vegetation and the thousands of of-year-old redwoods depend on is disappearing in the Bay Area. More than 30% fog reduction; the fog starts later, ends earlier, and also fewer hours of fog during the day. But the redwoods, lichens, moss, and all plants rely on the fog dripping. The redwoods can survive, but fewer seedlings grow, becoming tall trees.

Lodging and Camping

Campground map of Big Basin
Big Basin was heaven for camping.

There were several huge campgrounds in Big Basin, but all got destroyed.

Best Months to Visit


Location and Tips

California, Santa Cruz
United States
United States

Big Basin is California’s oldest State Park, established in 1902. It was created to preserve these extraordinary ancient coast redwoods.

A tall redwood before the fire in Big Basin
Redwoods are California's official state tree.

They are the tallest trees in the world, growing over 370 feet/ 112 meters. The tallest inside the park is 328 feet/ 100 meters high and 50 feet/ over 15 meters in circumference. It is estimated that they can live for more than 2000 years. Many trees inside the State Park are between 1000 and 2000 years old.

The layaers or rings of an ancient redwood
This tree was 1.392 years old - each layer or ring is one year.

These awe-inspiring trees can withstand storms, floods, fires, drought and even termites due to their red pigment, a chemical component called tannin. Although their roots grow only 6-10 feet/ 1,80–3 meters deep, they are resistant to a storm.

The base of a redwood
In the beginning one tree and then three that are stuck together.

The reason for the resistant roots is they are almost as wide as the tree is tall. Due to their thick protective bark of up to 12 inches/ 30 cm, they usually survive devastating forest fires. Nine out of ten redwoods may have survived the so-called CZU Lightning Complex Fire. Redwoods and oaks are sprouting back from the base. Unfortunately, the Douglas-firs and understory plants are all destroyed.

A hollowed-out area in an ancient redwood
A hollowed-out area of a redwood by several fires centuries ago.

Only 4 % of the old-growth coast redwoods remained, and the number lowered due to annual fires in California. The coast redwood; Sequoia sempervirens are endemic to the US; they grow only along the coast from Central California to Southern Oregon. Sempervirens means “evergreen” or “ever-living”. It is a long regeneration process, more than a human lifetime until the redwoods shine in new splendour.

A laying big trunk and a hiker in front.
We are glad that we visited the park once.

It is a vast deconstruction; all hazardous trees have to be removed though some massive trunks will be left for the future health of the forest. The wood will decompose, giving nutrients to the soil.

The Mother and Father of the Forest

The Sequoia Trail Sign
One of the many hiking trails.

These are two of the most iconic redwoods situated at the Redwood Loop Trail. Both burnt but luckily survived. However, also their bark is blackened.

Hiking Trails

The Sempervirens Falls
The Sempervirens Falls was the end of a former hiking trail.

There were lots of short, medium, day, and backpacking hikes in Big Basin. 

  • Redwood Loop Trail ½ mile long to see some of the tallest and oldest redwoods like the “Mother” and the “Father” of the forest got destroyed. The trailhead was next to the Park Headquarter and Visitor Centre.
  • Sempervirens Falls trail; a circular 4 miles/ 6.4 km trail which took us 2 hours does not exist at the moment.
  • Ocean View Summit; the loop trail was 6 miles/ 9.6 km long and took about 3 hours.
  • Berry Creek Falls trail was 9.5  up to 11 miles/ 15.2 up to 17.6 km long depending on the chosen track led to four waterfalls and many of the tallest and oldest redwoods in the park.

Another option was a backpacking hike and overnight stay in a remote and primitive campground. "The Skyline to the Sea" trail was one of the famous backpacking trails.

An information Board in Big Basin about redwoods
Almost all information boards were destroyed.

    Marbled Murrelet

    The fire was a tragedy for the marbled murrelet, a robin-sized small seabird. This bird is endangered in California. They usually nest high in the canopy of the redwoods and Douglas-fir to protect their nests from predators. Big Basin was home to a bigger population. These birds travel daily to the sea for herring and anchovies at dusk and dawn. They lay just one egg and raise one chick per year in the summer. 


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