Syon Park is the lush garden surrounding Syon House, the London residence of the Duke of Northumberland. Designed by Capability Brown in the 18th century, this Grade I listed park boasts rare trees, a picturesque lake inhabited by terrapins, and the historic Great Conservatory. Visitors can explore the 56.6-hectare main gardens, which are a haven for nature conservation, while also enjoying the scenic flood meadows along the River Thames. With its rich history and stunning landscapes, Syon Park offers a tranquil escape from the hustle and bustle of city life.