Within walking distance to El Blok, and one of Puerto Rico's only award winning, "Blue Flag" beaches, Sun Bay is a dreamscape for a lazy day at the beach. White sand, crystal blue waters gently lapping the shoreline, and coconut palms swaying in the breeze and beckoning you to join them for a nap in the shade, make Sun Bay our top pick among Vieques' more than 30 accessible beaches. Insider Tip: On weekends and holidays, there is a $4 per car entry fee. If the entrance gate is closed, it doesn't mean the beach is...just drive through exit gate. We know. Quirky. But its true.