Map of the Blyth Navigation from Southwold to Blythburgh

This map shows the four mile navigable stretch of the river Blyth.  Boats with a reasonably shallow draft can get from Southwold Harbour to the RBNA jetty at Blythburgh, but beware of the Bailey bridge to Walberswick as there is not much headroom at high tide.  Use of the jetty is strictly for RBNA members (see details on home page). It is a good idea to plan your trip with the tide in mind, high tide at Blythburgh is roughly an hour and a half later than at Southwold. The jetty is a short walk from the White Hart pub where food and drinks are available (check online for opening times).  You can also see where the Southwold Railway Trust are rebuilding the Blythburgh station.

As can be seen from the map above the river twists and turns, so stay in the middle of the channel to avoid hitting submerged wooden pilings.  The channel is marked with wooden Whithies which are wooden poles set in the river to mark the port, red,  and, starboard, green (your right on the way inland), sides of the channel.  Care must be taken as these markers get dislodged and are sometimes missing.  If you download the free app, Discover Suffolk, there is a track which you can follow if the markers are not visible. 

https://oad.outdooractive.com/oad-discover-suffolk/s/Ijjm4A

Additional information about the route can be found on these hand drawn maps of the route.  Care must be taken as these maps are not to scale and the river features are likley to change over time.