Exhibit 99.1

SeaWorld Entertainment, Inc. Announces Amendment of Existing Share Repurchase Program

- Program Start Date Accelerated to December 17, 2014 -

- Authorizes Repurchases of Up to $15 Million for Remainder of Calendar Year 2014 -

ORLANDO, Fla—Dec. 16, 2014—SeaWorld Entertainment, Inc. (NYSE: SEAS) announced today that the Company’s Board of Directors has approved an amendment to its previously announced $250 million share repurchase program to accelerate the start date of such program from January 1, 2015 to December 17, 2014 and to authorize the repurchase of up to $15 million of its common stock during the remainder of calendar year 2014. The other features of the share repurchase program remain unchanged including the total amount authorized and available under the program of $250 million.

As previously announced, the Company’s ability to declare dividends, repurchase shares or make certain other restricted payments under the Company’s debt covenants is limited to approximately $15 million for the remainder of calendar year 2014. As a result, the Company’s Board of Directors elected to postpone the declaration of the Company’s fourth quarter 2014 dividend. The amount available for dividend declarations, share repurchases and certain other restricted payments under the covenant restrictions in the Company’s debt agreements will reset on January 1, 2015 and the Company expects to declare and pay the fourth quarter 2014 dividend in January 2015.

About SeaWorld Entertainment, Inc.

SeaWorld Entertainment, Inc. (NYSE: SEAS) is a leading theme park and entertainment company delivering personal, interactive and educational experiences that blend imagination with nature and enable its customers to celebrate, connect with and care for the natural world we share. The Company owns or licenses a portfolio of globally recognized brands including SeaWorld^®, Shamu^® and Busch Gardens^®. Over its more than 50-year history, the Company has built a diversified portfolio of 11 destination and regional theme parks that are grouped in key markets across the United States, many of which showcase its one-of-a-kind collection of approximately 86,000 marine and terrestrial animals. The Company’s theme parks feature a diverse array of rides, shows and other attractions with broad demographic appeal which deliver memorable experiences and a strong value proposition for its guests.

SeaWorld Entertainment, Inc. is one of the world’s foremost zoological organizations and a global leader in animal welfare, training, husbandry and veterinary care. The Company collectively cares for what it believes is one of the largest animal collections in the world and has helped lead advances in the care of animals. The Company also rescues and rehabilitates marine and terrestrial animals that are ill, injured and orphaned, with the goal of returning them to the wild. The SeaWorld rescue team has helped more than 24,000 animals in need over the last 50 years.

Copies of this and other news releases as well as additional information about SeaWorld Entertainment, Inc. can be obtained online at www.seaworldentertainment.com. Shareholders and prospective investors can also register to automatically receive the Company’s press releases, SEC filings and other notices by e-mail by registering at such website.

Forward-Looking Statements

In addition to historical information, this press release contains statements relating to future results (including certain projections and business trends) that are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are subject to the “safe harbor” created by those sections. The Company generally uses the words “might,” “will,” “may,” “should,” “estimates,” “expects,” “continues,” “contemplates,” “anticipates,” “projects,” “plans,” “potential,” “predicts,” “intends,” “believes,” “forecasts,” “future” and variations of such words or similar expressions in this press release and any attachment to identify forward-looking statements. All statements, other than statements of historical facts included in this press release, including statements concerning plans, objectives, goals, beliefs, business strategies, future events, business conditions, results of operations, financial position and

business outlook, earnings guidance, business trends and other information are forward-looking statements. The forward-looking statements are not historical facts, and are based upon current expectations, estimates and projections, and various assumptions, many of which, by their nature, are inherently uncertain and beyond management’s control. All expectations, beliefs and projections are expressed in good faith and the Company believes there is a reasonable basis for them. However, there can be no assurance that management’s expectations, beliefs and projections will result or be achieved and actual results may vary materially from what is expressed in or indicated by the forward-looking statements.

These forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from the forward-looking statements contained in this press release, including among others: various factors beyond management’s control adversely affecting discretionary spending and attendance at the Company’s theme parks; inability to protect intellectual property or the infringement on intellectual property rights of others; incidents or adverse publicity concerning the Company’s theme parks; outbreak of infectious disease affecting the Company’s animals; change in federal and state regulations governing the treatment of animals; and other risks, uncertainties and factors set forth in the section entitled “Risk Factors” in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013, as such risks, uncertainties and factors may be updated in the Company’s periodic filings with the Securities and Exchange Commission (“SEC”).

Although the Company believes that these statements are based upon reasonable assumptions, it cannot guarantee future results and readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management’s opinions only as of the date of this press release. There can be no assurance that (i) the Company has correctly measured or identified all of the factors affecting its business or the extent of these factors’ likely impact, (ii) the available information with respect to these factors on which such analysis is based is complete or accurate, (iii) such analysis is correct or (iv) the Company’s strategy, which is based in part on this analysis, will be successful. Except as required by law, the Company undertakes no obligation to update or revise forward-looking statements to reflect new information or events or circumstances that occur after the date of this press release or to reflect the occurrence of unanticipated events or otherwise. Readers are advised to review the Company’s filings with the SEC (which are available from the SEC’s EDGAR database at www.sec.gov and via the Company’s website at www.seaworldentertainment.com).

Contacts:

Investor Relations Inquiries:

SeaWorld Entertainment, Inc.

855.797.8625

Investors@SeaWorld.com

Media Inquiries:

Fred Jacobs

Vice President of Communications

Fred.Jacobs@SeaWorld.com

Source: SeaWorld Entertainment, Inc.