The park contains the remnants of the Sevenoaks to Tonbridge railway line, which is now part of the regional cycle network.
The Barden Lake area is a reclaimed gravel extraction site that ceased operation in the late 20th century.
Haysden Lake is an ancient lake bed and a designated Site of Special Scientific Interest (SSSI) due to its biodiversity.
The park forms part of a wider flood defense infrastructure designed to regulate the River Medway's flow.
It is a key point along the long-distance Medway Valley Walk which stretches approximately 28 miles.
Haysden Country Park is a 165-acre site spanning the Medway Valley, characterized by its gravel pits repurposed into Barden Lake and Haysden Lake. It serves as a vital gateway to the Medway Valley Walk, connecting Tonbridge to Maidstone via a long-distance trail. The park includes the SSSI-designated Haysden Lake, which is a significant habitat for wildfowl. Watersports, including sailing and windsurfing, are managed by local clubs on the primary water bodies. Angling is permitted in designated areas under local permits. The terrain features a mix of woodland, grassland, and wetland habitats. A dedicated bird hide is available for observation of migratory and resident species. The park serves as a flood storage reservoir system to protect Tonbridge from seasonal river surges. It is managed by Tonbridge and Malling Borough Council as a Green Flag award-winning space.
The wooden bridge overlooking the main lake during sunrise or sunset.
Bring polarized sunglasses to better observe fish and waterfowl activity on the lakes.
Visit the dedicated bird hide early in the morning for the highest chance of spotting kingfishers.
Stick to the marked trails during wet weather, as the lower-lying meadows frequently become waterlogged.
Attempting to swim in the lakes, as deep-water hazards and cold-water shock are significant risks.
Dogs must be kept under control, especially near livestock or nesting birds; remove all waste and follow the Countryside Code.