Pirates of Costa Rica?

Arrow points to area of alleged attack

A report of a Costa Rica pirate attack :

Two Dana Point boaters sailing in Costa Rica reported their 50-foot sailboat had been attacked by masked and armed pirates that boarded after dark, tied them up with duct tape, and stole about $12,000 of electronics and cash, according to a boating newsletter.

According to an account in the Log newspaper, Bruce Stevens and Clark Nicholson were cruising with Stevens' El Salvadoran girlfriend near Quepos, Costa Rica when about six pirates attacked their Gulfstar sailboat called "Two Amigos" around 7:30 p.m. on Oct. 15.

Unconfirmed.

There have been warnings about possible piracy off Costa Rica, as seen here, where the drug trade gets the blame.

And, of course, there is some history.

UPDATE: Another warning here.