Castles on the Rhine

While we were at Koblenz we thought it a total necessity to check out the Romatic Rhine and its UNESCO world heritage status.  With that in mind we bought a boat ticket to St Goar where we got off and cycled back to Boppard where we rejoined the return boat back to Koblenz.  Its a 6 hour journey to cruise the full middle Rhine (Koblenz - Rudesheim), not too far from where the Maine flows into the Rhine. St Goar was about half way.  Certainly some beautiful castles but not nearly as many vineyards as the Moselle and as for the famous Lorelei rocks!!!!