I believe this is the nicest park in the Blanchardstown area (one of the biggest suburbs in Dublin). It is great for a walk, a run or any outdoors activity, as flying a drone, which is what one of my friends usually does. Of course, as any quiet park, it is perfect for laying on the grass and relaxing.
The park has outdoors fitness equipment, as body flexer, free runner and others. They are not all together, so you will have to move around the park to find them, which I think is great.
If you want to have a small picnic you can go to the supermarket in Blanchardstown Village, 10 minutes away on foot, or to the shopping centre 15 minutes away (one of the biggest in Ireland). There is also a nice lake with ducks and swans. Just to let you know, swimming is not allowed. Instead, enjoy watching the swans while sunbathing.
If you like, you can also explore the small walks in between the trees. They’re very nice, however they may not be very easy to spot.
Next to the lake there is a small playground for children, so the park is perfect for families.