Trigwell Bridge is a riverside camping and picnic area situated on the Blackwood River, straddling the boundary of the Shire of Boyup Brook and the Shire of West Arthur, accessed via Trigwell Bridge Road off the Boyup Brook–Arthur Road.

The site sits on Shire land close to the road and offers enough space for caravans to park and turn around, along with a picnic table and direct access to the riverbank.

The river here forms a large pool suitable for watercraft, and when water levels are sufficient, the site serves as a popular launching point for canoe journeys downstream to Boyup Brook. Swimming is not recommended due to underwater snags.

Visitors are asked to take all rubbish on departure, and camping and cooking fires are prohibited from 30 October to 1 April.