The River Blyth in Suffolk is a tidal estuary offering a straightforward out-and-back paddle between Walberswick and Blythburgh, covering approximately 8 miles round trip. The character of the paddle is typical of a Suffolk estuary, with open and potentially exposed stretches that require paddlers to be prepared for variable conditions. The route is considered suitable for intermediate paddlers of at least 2-star level, and is not recommended for those in short play boats. Longer touring or sea kayaks are more appropriate given the distance and exposure.

Tidal planning is essential on this stretch. The estuary is tidal, and trip timing should be coordinated around local tide times, with Southwold used as the reference point for high water calculations.

A car park is available at the end of the B1387, the road running to and through Walberswick from the A12. Paddlers should follow the main road until it approaches the river, where parking is available on either side. A small slipway just downstream of the passenger ferry crossing serves as the launch point. A parking charge may apply at Walberswick.

Given the exposed nature of the estuary and the distance involved, appropriate layered clothing for cold and wet conditions is advisable, along with food, a flask, and spare dry clothing. The route is not considered suitable for novice paddlers or those unable to sustain the full distance.