Fair-skinned tots enjoy a UV reprieve at Brooklyn's best-kept natatory secret: the "D&D," or "Double-D," pool, as it's called (cue the flotation jokes). The deck has a covered area for overcooked sunbathers that is miraculously uncrowded. Keep in mind: It's hard to see the main pool from the kiddie pool. If you bring tweens and toddlers, you might struggle to keep track of both groups at once.