My dad(dwilbraham on here) has just had four month sabbatical up in the baltic but he managed to get there without having to take mast down. Can't be exact but he went from chichester then up to amsterdam then kiel canal and seemed to end up in that region. Going to try to get him to post or let me post his weekly e-mails of his trip, any thoughts on whether people would want this or not?
Cheers in advance
Dover to Westerscheldt.into canals to Middleburg ,to Gouda ,To Amsterdam,across Markenmeer,across iselmeer to Lemmer,Dockum and then to Leewersoog .then it propobally best to go out to sea and round friesien islands to cuxhaven and up to keil canal.(it is possible to go to Delfzil with mast up but there is no gain in distance and it takes longer)
As a local, knowing most of the route insode out, I can give you a number of possibilities. As Crisc pointed out, it's in at Vlissingen, then trhough the canal to Middelburg and on to Veere. Then down the Veersemeer, lock out into Oosterschelde, on to Krammersluis to be locked into fresh water, then on to Willenmstad (locks again, onto tidal fresh water(!)) then turn East to Dordtse Kil and the railway bridge Dordrecht. This is the first real bottleneck, as it only opens every two hours or so, but not always. Subject to change every year. Then on to the Alblasserdam road brigde (2x per hr) turn port at the end of the Noord water towards Rotterdam and then to stbd into the IJssel river. In Gouda you are locked into the canal and river system of the province of South Holland. The second (and one of the worst) bottleneck is now coming up: the Gouda Railway Bridge. Opens only a couple of times a day. from memory: 05.59, 10.12 (summer only) 13.12 and 21.12, but do check as this also changes every year. Now you find yourself in the maze if the canal system. roughly you go on via Waddinxveen to Alphen aan den Rijn where you must choose between the Amsterdam route (overnight convoy crossing the city) or the Haarlem route, which takes longer but has no night convoy. I started to prefer this, as I find the long wait for the railway bridge in Amsterdam, with a lot of side current and simply too many boats to try not to hit a little too interesting for my likings. But then again, ours is a heavy weight 48 foot long keeler. Also an overnight stop in the centre of Haarlem is worthwile. On the other hand, the Amsterdam passage is an experience you should have at least once. From S to N it is not quite as late, as the convoy starts moving at midnight, from N to S at 02.00-02.30.
From Haarlem, it's North to the large Noordzee Kanaal, where large shipping may be encountered, but the canal is very wide and there is nothing to it, really. From Amsterdam you lock out into the IJsselmeer. From here, there are different options. In real adverse weather, take the most sheltered route (depending on wind direction) to either Lemmer or Staveren. There, lock into the Frisian waters and go up to Leeuwarden. Corcle Leeuwarden clockwise (the anti-clockwise option is not mast up) and follow the Dokkumer Ee river until you reach the end at Dokkumer Nieuwe Zijlen (mind you, the town of Dokkum is a gem often missed)
Now, the normal option would be to lock out into the Waddenzee at Lauwersoog, but if the weather is adverse, there is an option to lock back in at Zoutkamp and take the canals to Groningen (beautiful city) and finally to Delfzijl. If you really don't fancy thje sea route, this is where one could take the mast down and follow the German canal system to finally reach Otterndorf, near Brunsbüttel on the Elbe, after which there is the Kieler Kanal to take.
But normally, the quick route is Lauwersoog-Helgoland (to time the Elbe entry properly tidewise) end Helgoland Brunsbüttel
you can click on the link here for the official web page about the standing mast route from Willemstad to Amsterdam or Haarlem. This is the most critical part as bottlenecks are concerned. The page is only in Dutch, but give the opening times per bridge or lock, and the bridges and locks are numbered on the small maps.
For any specific info please ask
NB: there is a closure of the Amsterdam section imminent due to works, some time this month. When are you going?
cheers