This 140-acre (57-hectare) park is the best-known, most frequently visited children’s playground in Puerto Rico—although it has equal appeal to adults. Conceived as a verdant oasis in an otherwise crowded urban neighborhood, it’s a fenced-in repository of swings, jungle gyms, and slides set amid several small lakes and rolling green fields. Here you’ll also find an incomparable view of San Juan. A small-scale cable car carries passengers aloft at 10-minute intervals for panoramic views of the surrounding landscape ($2 per person).