La Jolla in San Diego in San Diego County, California — The American West (Pacific Coastal)
San Diego-La Jolla Underwater Park
You are encouraged to enjoy the underwater splendors of this natural park and the surrounding area bordered by a beautiful coastline with magnificent golden cliffs, scenic public beaches, and the Torrey Pines State Reserve. Sport or commercial fishing is permitted within the Park but not in the Ecological Reserve. Please follow the rules for the Underwater Park, Marine Life Refuge, and Ecological Reserve to ensure that future visitors will have the same pleasurable visual experience.
Marine Life Refuge
The San Diego Marine Life Refuge was established in 1929 by the California Fish and Game Commission to allow licensees of the Regents of the University of California to take, for scientific purposes, any invertebrate ot specimen of marine plant life without a permit from the department. It is unlawful for the public to take or possess any invertebrate or specimen of marine plant life in a Marine Life Refuge.
Recreation and fishing are permitted within the Marine Life Refuge. The Refuge is intended to further the University of California’s knowledge of the physical and biological perimeters of this unique and special marine habitat located between two major underwater canyons.
Ecological Refuge
A committee to advise on the regulation of uses for the Underwater Park recommended to the San Diego County City Council creation of an Ecological Reserve to preserve native marine plants and animals in their natural state. The Council passes a resolution 1971 authorizing the Californa Fish and Game Commission to establish the Ecological Reserve. This “Look But Don’t Touch” area covered about 514 original acres which were increased to 533 acres in 1981. A string of buoys marks the outside perimter of the reserve. Separate buoys marking a “boat-free” swimming zone and a 5 mph zone are located within the Ecological Reserve.
All fishing in the Ecological Reserve is prohibited. Marine life, geological formations and archeological artifacts are protected.
“Look But Don’t Touch”
Topics. This historical marker is listed in these topic lists: Animals • Environment • Parks & Recreational Areas • Waterways & Vessels. A significant historical year for this entry is 1970.
Location. 32° 51.053′ N, 117° 16.387′ W. Marker is in San Diego, California, in San Diego County. It is in La Jolla. It can be reached from Coast Boulevard. Touch for map. Marker is at or near this postal

Photographed by Douglass Halvorsen, July 7, 2025
3. San Diego-La Jolla Underwater Park Marker
Located next to the marker is a plaque that reads:
This Plaque in Commemoration of
Conrad F. Limbaugh and Harold F. Riley
For Their Efforts Toward the Creation of
The San Diego-La Jolla Underwater Park
Presented by
The San Diego Council of Diving Clubs, Inc.
1972
South Boundary
Conrad F. Limbaugh and Harold F. Riley
For Their Efforts Toward the Creation of
The San Diego-La Jolla Underwater Park
Presented by
The San Diego Council of Diving Clubs, Inc.
1972
South Boundary
Regionally, this marker is in California’s Peninsular Ranges. It is also on the American Pacific Coast. Globally, it is in North America, on the Ring of Fire, in the Pacific Rim, in the Western Hemisphere, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexico’s Alta California.
Other nearby markers. At least 8 other markers are within 3 miles of this marker, measured as the crow flies: San Diego Bottom Scratchers Dive Club (within shouting distance of this marker); St. James-By-The-Sea Episcopal Church Fountain (approx. half a mile away); Ellen Browning Scripps (approx. half a mile away); La Jolla Woman’s Club Building (approx. half a mile away); Mt. Soledad National Veterans Memorial (approx. 1.8 miles away); John “Manila John” Basilone (approx. 1.8 miles away); Conserving California's Coastal Treasures (approx. 2.2 miles away); Washington to Baltimore 1844 Telegraph Message (approx. 2½ miles away). Touch for a list and map of all markers in San Diego.
Credits. This page was last revised on August 5, 2025. It was originally submitted on August 4, 2025, by Douglass Halvorsen of Klamath Falls, Oregon. This page has been viewed 107 times since then and 23 times this year. Photos: 1, 2, 3, 4. submitted on August 4, 2025, by Douglass Halvorsen of Klamath Falls, Oregon. • Andrew Ruppenstein was the editor who published this page.


