Brand/Publisher: Sea World / Marine Park Corp., Mission Bay Park, San Diego, California; © 1966 Marine Park Corp.

Item: Original vintage tri-fold color promotional brochure for the Sea World marine theme park at Mission Bay Park, San Diego, featuring Shamu the killer whale and early attractions.

Front cover shows a full-color photograph of Shamu rising from the water with mouth open, captioned "Shamu... The only Killer Whale on public display in the world... At Sea World, on Mission Bay." The lower portion displays the circular Sea World logo with dolphin over waves and the title SEA WORLD / MISSION BAY PARK / SAN DIEGO.

When fully opened, the interior panels present descriptive text and color photographs of dolphin and sea lion shows, the large marine stadium with leaping animals performing before grandstand crowds, the Japanese Village-style restaurant pavilion on the lagoon, and close-up views of trained animals interacting with trainers and guests.

Text inside highlights Sea World's theatre-of-the-sea concept, underwater and above-water animal exhibits, Sea Maids and uniformed hostesses, food and refreshment locations, and the optional Richfield hydrofoil boat ride around Mission Bay, promoting the park as a family destination in Southern California.

Back panel carries a color photograph of landscaped waterways and the distinctive sweeping-roof show structure, along with descriptive copy about the park's hours, single-price admission policy, hydrofoil surcharges, and special group rates for clubs, organizations, and youth groups.

The lower back section features a bright, stylized road map locating Sea World within San Diego's Mission Bay area, marking routes such as Grand Avenue, Balboa Avenue, Mission Bay Drive, West Mission Bay Drive, Midway Drive, Rosecrans Street, and U.S. Highway 101, with a symbol indicating the Sea World entrance near the visitor information center.

Production credit at the bottom edge reads "Design Marc / Litho / San Diego, U.S.A.," confirming United States printing for Sea World promotional distribution.

Format and appearance: multi-panel glossy paper brochure printed in full color with photographs, descriptive park text, and regional location map, folding down to a slim travel pamphlet for visitor information racks, mailings, or San Diego, California tourism ephemera collections.

Notes: Early Sea World San Diego Shamu brochure from the mid-1960s, ideal for collectors of marine park history, California amusement park memorabilia, and vintage travel advertising.