Lindsay Lohan -- Trapped In PARADISE

5/28/2011 2:30 PM PDT
With an electronic monitoring bracelet strapped around her ankle, Lindsay Lohan served her second day under house arrest suffering on her roof ... in the warm California sun.

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Lohan is currently shacked up at her swanky townhouse in Venice, CA -- where, from her roof, she can totally see the ocean.

Lindsay -- who's being punished for allegedly stealing a necklace -- is only expected to serve around 35 total days of hard time ... glorious, relaxing, court-ordered hard time.