"The trails may remain closed up to 48 hours after the last rainfall." The City of Rancho Palos Verdes used that sentence in each of the four Palos Verdes Nature Preserve rain closures it has announced since December 2025. The City posted on October 8, 2026 that rain is coming and set out sandbags at City Hall, so the sentence will start showing up in inboxes again soon.

The 48 hours start counting only after the rain stops, and the reopening is announced in a separate notice. The City's own record of closures and reopenings shows how long the trails have actually stayed shut after a storm, and it runs from one day to more than a week.

Four Closures, Four Different Lengths

The City sends Preserve alerts through its Notify Me system and keeps every past message in a public log. Since December 2025, four alerts have closed the whole Preserve because of rain. Each one was followed by a separate notice reopening it.

The day counts are measured from each notice's effective date to the reopening date. They don't depend on rainfall totals, which the notices don't give. Only the September closure, sent at 12:18 p.m. on September 8 and lifted at 9:24 a.m. the next day, came close to the 48 hours in the standard wording. The three winter closures lasted two and a half to four times that long.

The holidays show the pattern most clearly. From December 24, 2025, through January 7, 2026, the Preserve was open only on December 29 and 30. The second closure notice went out on New Year's Eve, two days after the first reopening. Anyone who kept the holiday week free for long walks above Portuguese Bend got two days of trail time in the stretch from Christmas Eve to Epiphany.

What Closes When "the Preserve" Closes

The notices use a single name, but the closure covers a great deal of ground. The Palos Verdes Peninsula Land Conservancy lists 15 reserve units in the Palos Verdes Nature Preserve:

• Abalone Cove
• Agua Amarga
• Alta Vicente
• Dorothy and Allen Lay
• Filiorum
• Forrestal
• Jacqueline M. Glass Family
• Lower Filiorum
• Malaga Canyon
• Ocean Trails
• Portuguese Bend
• San Ramon
• Three Sisters
• Vicente Bluffs
• Vista Del Norte

The Conservancy puts the Preserve at about 1,400 acres with more than 30 miles of trails. The City's Fall 2026 draft Trails Network Plan counts 31 miles in its Preserve Trail System. In any case, a rain closure takes most of the Peninsula's public open-space trail system offline at once.

Every one of the four closure notices also named Abalone Cove Park, and every reopening notice reopened it alongside the trails. A rainy weekend can therefore close a beach park as well as the canyon trails above it.

The Preserve has two stewards. The City owns the land. The Conservancy holds conservation easements and serves as habitat manager, and the draft plan says the City and the Conservancy maintain the trails jointly under their management agreement. The alerts themselves come from the City's Open Space and Trails Division.

Why the Clock Starts at the Last Drop

The fullest explanation of the rule is in an older City notice, archived from January 2016. It says the Preserve closed "in order to protect public safety and to reduce trail damage," and adds: "Typically, the closure time is extended for 48 hours after the last recorded rainfall, but it may be extended if heavy rains continue." That notice cites RPVMC 12.16.090, the section of the municipal code on closed areas.

That wording helps explain why the winter closures ran long. The 48 hours start counting at the last rainfall, so under the 2016 description, any further rain during a closure pushes the reopening back. The January 2016 notice also left room to extend a closure past that point. The current notices don't restate the extension language. Instead they say only that the Preserve "will be" closed and trails "may remain closed up to 48 hours."

Open Does Not Mean Every Trail Is Open

The reopening notices include a second qualifier. The September 9 notice says: "Several temporary trail closures may remain in effect." The winter reopening notices carry the same warning.

The log shows that individual trails close often, rain or not. In summer 2026 alone, the City sent separate alerts for the following closures:

• Toveemor Trail on July 11
• East Boundary Trail from July 6 to 10
• Sunset Trail from August 17 to 28
• Sunrise Trail on August 21, again on September 1, with a reopening notice on August 28 in between
• East Boundary Trail again, with a notice saying it would stay closed through September 25

The Preserve-wide reopening therefore doesn't settle whether a particular trail is open.

Checking Before You Park

The closure and reopening notices point to the same places for status:

1. The trail alerts page. The City's Trail Conditions and Alerts page, reachable at rpvca.gov/trailalerts, lists temporary trail closures.
2. The Open Space and Trails Division. Call 310-491-5775 for current conditions.
3. The Notify Me list. The City's Palos Verdes Nature Preserve Notify Me list sends closures, reopenings and single-trail alerts as they're issued, and it keeps the full history used for the table above.

The archive also tells you how often closures happen. On average, a closure notice from last winter came with a reopening notice about six days later.

Trails the Preserve Count Leaves Out

The City's draft Trails Network Plan treats the Preserve's 31-mile system separately from what it calls neighborhood trails. Two private developments account for some notable public trail mileage.

At Terranea Resort, which opened in 2009, the development permit required the resort to record public use easements on about 2 miles of bluff-top trails on its private property. Terranea maintains those trails. They aren't part of the Preserve trail system. None of the sources reviewed for this post addresses whether they close after rain, so check conditions there separately.

Trump National Golf Course is a different case. According to the draft plan, the course transferred more than 114 acres of open space to the City under its development permit. That land includes Ocean Trails Reserve, three parks and more than 5.5 miles of trails, which the course maintains on the City's behalf. Ocean Trails is one of the Conservancy's 15 Preserve units, so its trails fall under the Preserve-wide rain closure even though a golf course maintains them.

For the George F Canyon trail, the Conservancy lists George F Canyon Nature Preserve separately from the Palos Verdes Nature Preserve. It sits in Rolling Hills Estates, which owns the Nature Center, and the Conservancy runs it. Because it's outside RPV, RPV's Preserve notices don't cover it.

Where the Repair Work Is Headed

The closures exist to protect the trails from damage, and the City is now revising the long-range plan that guides trail repairs. The draft Trails Network Plan, dated Fall 2026, combines the City's existing trails and bikeways plans into one advisory document. It inventories existing and conceptual routes and sets guidelines for signage, amenities, maintenance and implementation.

Its trail policies call for engineering that avoids soil erosion and degradation. Its maintenance priorities include erosion and drainage problems, and it allows remedial work that repairs, restores or reroutes damaged trail segments. The draft also credits the Conservancy's Volunteer Trail Crew with repairing several miles of trails each year.

The City held public workshops on the draft on September 10 at Hesse Park and September 24 at Ladera Linda Community Center. Both started at 6 p.m. and offered virtual participation. The draft gives the City Council authority to adopt the plan but sets no target date. It also calls for future workshops every four years in the spring, timed so recommended updates reach the Council before the budget is drafted. Until the Council acts, the closure-and-reopen cycle in the Notify Me log remains the best record of how the trails hold up in wet weather.

If you own a home near a Preserve trailhead and want to know how that access figures into its value, Suzanne Dyer can walk you through it as part of a Confidential Home Valuation, drawing on more than 30 years of working on the Peninsula.

This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.