Overview
The Sonny Bono Salton Sea National Wildlife Refuge occupies roughly 37,600 acres along the southern and southeastern margins of the Salton Sea in Imperial County, California. It was established in 1930 and renamed in 1998 to honor the late congressman and entertainer Sonny Bono, who was a vocal advocate for the sea's restoration. The refuge is managed by the U.S. Fish and Wildlife Service.
The Salton Sea itself is California's largest inland lake by surface area, sitting approximately 235 feet below sea level in the Colorado Desert. The refuge protects mudflats, open water, freshwater marshes, and desert uplands — a mosaic of habitats that supports an extraordinary diversity of birds. More than 400 bird species have been recorded in and around the Salton Sea region, making it one of the most important avian stopovers in North America along the Pacific Flyway.
The landscape is austere and otherworldly. Flat, cracked earth, salt-encrusted shorelines, and a vast shimmering lake framed by bare desert mountains define the scene. It is not a conventional scenic destination, but for naturalists and birdwatchers it holds genuine significance. Visitors should be aware that the Salton Sea faces serious ecological challenges, including receding water levels and rising salinity, which affect conditions at the refuge from year to year.
Before You Go
Entry Requirements
The refuge is on federal public land in the United States. International travelers should check TravelerPulse's Visas section and consult the U.S. Customs and Border Protection website for current entry requirements before travel.
When to Visit
Winter (October through March) is the prime season. Temperatures are mild, typically ranging from the 50s to low 70s Fahrenheit, and bird populations are at their peak. Summers are extreme — temperatures regularly exceed 110°F (43°C) — and most wildlife activity is reduced. Spring can bring migrating shorebirds in April and May, which is also a rewarding period.
What to Pack
- Sunscreen, wide-brimmed hat, and sunglasses year-round
- Ample water — at least one gallon per person per day in warm months
- Binoculars and a field guide to western birds
- Insect repellent, particularly near marsh areas in warmer months
- Sturdy closed-toe shoes; terrain can be muddy near water access points
- Camera with a telephoto lens if you intend to photograph wildlife
Health Note
The Salton Sea shoreline can produce an unpleasant odor due to algae blooms and decaying organic matter, particularly in summer. Air quality can occasionally be affected by dust from exposed lakebed. People with respiratory sensitivities should check local air quality reports before visiting.
Getting There
By Car
The refuge headquarters and visitor contact station are located near Calipatria and Niland in Imperial County. The main access road is off California State Route 111, which runs along the eastern shore of the Salton Sea. From the Los Angeles area the drive is approximately 2.5 to 3 hours; from San Diego it is roughly 2 hours via Interstate 8 east and then north on SR-111. From Palm Springs, the drive south on SR-111 takes about 1.5 hours.
Nearest Airports
The nearest commercial airports are Palm Springs International Airport (PSP) to the north and San Diego International Airport (SAN) to the west. Both require a car rental for onward travel to the refuge, as there is no public transit serving this remote area.
By Public Transit
Public transit access is extremely limited. The refuge is in a rural desert region and a personal vehicle or rental car is effectively required for a visit. Verify any regional transit options locally before planning.
Getting Around
The refuge is best explored by car along the auto tour route and designated access roads. A short walking trail leads from the visitor contact station to an observation platform overlooking freshwater impoundments — this is one of the most productive spots for close bird observation.
Some areas of the refuge, particularly around the Unit 1 impoundments near the headquarters, are accessible on foot via level, unpaved paths. Terrain is generally flat but can be soft or muddy near water. Bicycles are permitted on designated roads; verify current access rules at the visitor contact station or on the U.S. Fish and Wildlife Service website.
No shuttles or guided tours are regularly operated by the refuge itself. Guided birding tours are occasionally offered by local Audubon chapters and private nature tour operators — verify current offerings through regional birding groups or the refuge office.
Where to Stay
There are no lodging facilities within the refuge. The closest accommodation options are in Calipatria, Brawley, and El Centro. These towns offer standard budget and mid-range chain motels; verify current availability and rates directly with properties or through a booking platform before your trip.
For visitors who prefer to stay in a more amenity-rich setting, Palm Springs to the north has a wide range of hotels and is a feasible base for an early-morning departure to the refuge. The drive is approximately 1.5 hours.
Camping is not permitted within the refuge itself. Some dispersed camping options exist on adjacent Bureau of Land Management land — verify rules and permit requirements with the BLM Imperial Field Office before planning an overnight stay outdoors.
Things to See & Do
Birdwatching
This is the primary draw. Winter months bring massive concentrations of Ross's and snow geese, various duck species, eared grebes, and American white pelicans on the open water. Shorebirds such as dunlin, dowitchers, and sandpipers feed on the mudflats. Raptors including ferruginous hawks, peregrine falcons, and bald eagles are regularly observed. The Yuma clapper rail (a secretive marsh bird) is among the species the refuge was specifically designed to protect.
Auto Tour Route
A designated auto tour route allows visitors to observe wildlife from their vehicle, which is often the least disruptive way to approach birds. Conditions on unpaved sections vary with weather; verify road conditions locally.
Photography
The combination of dramatic light, flat desert terrain, and large concentrations of birds makes this a rewarding destination for nature photographers, especially in the golden hours around sunrise and sunset.
Hunting and Fishing
Hunting and fishing are permitted in certain areas and seasons under federal regulations. Verify current rules, seasons, and permit requirements with the U.S. Fish and Wildlife Service before planning a hunting or fishing visit.
Rock Hill Trail
A short interpretive trail near the headquarters provides an elevated vantage point over the impoundments. It is one of the few spots in the otherwise flat landscape that offers a broad overlook.
Food & Drink
There are no food or drink facilities within the refuge. Visitors should bring all food and water they will need for their visit.
The nearest towns with restaurants and grocery stores are Calipatria (a few miles south of the headquarters) and Brawley, a larger town roughly 20 miles to the southeast. Both offer basic American diner-style restaurants, fast food chains, and supermarkets. El Centro, the Imperial County seat approximately 40 miles south, has a broader range of dining options.
Given the remote location and extreme summer heat, carrying more water than you think you need is strongly advisable.
Practical Information
Visitor Contact Station
The refuge visitor contact station near the headquarters provides maps, information, and restroom facilities. Hours vary by season; verify current hours on the U.S. Fish and Wildlife Service website or by calling the refuge office before your visit.
Admission
Access to the refuge is generally free to the public. Verify whether any fees apply for specific activities (such as hunting) with the refuge office.
Cell Service
Cell coverage in this area of Imperial County is limited and unreliable. Download offline maps and any reference materials before leaving urban areas.
Restrooms
Restroom facilities are available at the visitor contact station. There are no facilities elsewhere on the refuge.
Leave No Trace
Pack out all trash. Feeding wildlife is prohibited. Stay on designated roads and trails to avoid disturbing nesting and roosting birds. Respect all posted closures, which may be in place to protect sensitive species.
Safety
Heat
Summer temperatures in the Imperial Valley regularly exceed 110°F (43°C). Heat illness is a genuine risk. Visit only during cooler months if possible; if visiting in warmer weather, start extremely early in the morning, carry substantial water, and return to your vehicle before midday.
Remote Location
Cell service is unreliable. Tell someone your plans before visiting. Carry a paper map. If your vehicle breaks down, stay with it rather than attempting to walk to help in extreme heat.
Wildlife
The refuge supports rattlesnakes, particularly in warmer months. Watch where you step and place your hands. Do not approach or attempt to handle any wildlife.
Emergency Services
Emergency services in Imperial County are based in towns some distance from the refuge. Response times may be longer than in urban areas. The nearest hospitals are in El Centro. In an emergency, call 911.
