The park is quite big and a nice relief of greenery to the concrete forest of the Silom area.
It has boating facility and an area for concerts and the like. There are a lot of lawns and a river flows in between the greens. A lady sits there selling bread that you can feed the fish with. However, there are a lot of pigeons who fight to get the food. This can be a little scary for young kids.
There is a children's playground. But I'd recommend going when it isn't in the monsoon (rainy) season as the playground area tends to have a lot of puddles.
All in all, our kids loved running around the park. I recommend this for young kids.