The tea-room has its own tea garden and courtyard where you can sit and eat food and drink purchased there, but if you've brought your own picnic then there's plenty of places across the park to enjoy a spot of al fresco dining.
The National Trust shop sells rugs and other picnic essentials, including reusable cups - so don't worry if you forget to pack these things.
Here are some of our top picks of places to have a picnic:
The East Front
One of the first things you'll see when you come down the drive into Dyrham Park is the 17th-century house, which has a wonderful grassy area in front on which you can enjoy a picnic. Later on in the day, the deer often gather nearby.
Old Lodge natural play area
If sitting on the grass isn't for you, Old Lodge has hay bales and picnic tables and lots of things for children to do - balancing beams, climbing frames and a beautiful allotment where you may find some things to pick to go with your picnic. A gated area, you can enjoy a family picnic - while your little ones play.
Whitefield wildflower meadow
One of Dyrham Park's hidden gems, the large wildflower meadow next to the car park is full of colourful blooms and characterful grasses in the summer. It’s a great spot for a picnic as it’s not too far to carry your cooler box and chairs and your four-legged friends are welcome too, but dogs must be kept on leads and stick to Whitefield please.
The car park
There are a number of large picnic tables at the edge of the car park under the trees.
Please remember that the main park is grazed by deer and cattle so it's wise to choose a different area for your picnic.