FLORIDA KEYS — An online contest has debuted in which the winner receives a weeklong Florida Keys vacation for two as part of the 100th anniversary celebration of the completion of Henry Flagler’s Florida Keys Over-Sea Railroad.

The winner of the Florida Keys Cyber-Train to Sunshine Contest and a guest can follow the historic railroad’s route through the Keys on the contemporary Overseas Highway, much of which was built on the old railroad bed.

The prize package includes three nights at the Postcard Inn at Holiday Isle in Islamorada and three nights in Key West at the Casa Marina, originally conceived by Flagler and now a Waldorf Astoria Resort. The winner also is to receive a $1,000 air travel card and a $250 rental car certificate.

Also included is free admission to Pigeon Key, a 5-acre island that was once a base camp for railroad workers, a “dip” with dolphins at Marathon’s Dolphin Research Center and free admission to many Key West attractions.

The entry form and links to prize descriptions and rules are at fla-keys.com/flagler-centennial. The contest is to run through Jan. 22, 2012 — the 100th anniversary of the first train’s journey through the Keys and the culmination of a celebration now under way across the island chain. The winner is to be notified by Jan. 25, 2012.

Contest entry also is accessible through Keys social media sites.

Events commemorating the railroad’s centennial year include a performance by a re-enactor portraying railroad founder Henry Flagler, museum exhibitions, a “family fun” day on Pigeon Key, a period costume ball and a Key West parade on Jan. 22.

Over-Sea Railroad centennial information: www.FlaglerKeys100.com

Florida Keys visitor information: www.fla-keys.com or 1-800-FLA-KEYS (1-800-352-5397)

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