Playa Bonita is a very nice beach near Las Terrenas.
The beach is very steep on most parts. So comfortable to lay on because you sit up a little.
But there is not much space to play ball or run around, because the tide is about 100ft from the beach path.
The beach isn't crowded at all.
There are somewhat "high class" restaurants all over the beach front.
They are not that cheap compared to others, but not highly priced at all, you won't spend more than 25$ on a menu.
Park and Chill
So the perfect beach to spend a day just chillin'. See the Map where you can park your car. There is a big parking lot, even signalised if you come from Las Terrenas.