BRIEF: Eco-conscious buyer sought for undeveloped islands off Panama -- asking price: $100 million

Dec. 15--What do actors Johnny Depp, Leonardo DiCaprio and Mel Gibson have in common besides box-office successes? They've all succumbed at one time or another to a sort of island fever and ended up owning their own.

Now three tropical islands off Panama are for sale at $100 million. The undeveloped Cayonetas Islands, available for the first time in more than 35 years, include about 50 beaches, 19 miles of coastline and 1,800 acres.

The trio -- Bayoneta, Ca񡳠and La Caida islands -- are home to endangered turtles and 12 emerging sub-species of birds not found on the mainland. Up to 30% of the land is eligible for eco-conscious development. The rest is designated to remain a nature preserve.

The islands are set in Panama's Las Perlas archipelago, about a 20- to 30-minute helicopter ride from Panama City.

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Pangea World, a company focused on sustainable development and scientific exploration, is the co-seller.

Beverly Hills-based Hilton Hyland and Panamanian-based Panama Premier Estates, both Christie's International affiliates, are the listing agents.