hi
Like in Ireland you could go anywhere in Holland.....
Anglers World would sort you a deal out being as though there are only 2 of you and a high proportion of the fare is in the ferry which goes from either Hull or Harwich. The ferry companies are P&O from Hull or Stena from Harwich I think.
Alternatively you can book it direct yourself like many people do including ourselves.
They are overnight ferry trip and you need a cabin as its about 10 hours trip.
If you choose via Harwich you can also use Tesco vouchers and for every 1 used it counts as 4 pounds!!! So depending when you go it can make a right saving.
Area to head for in Holland:
Hellevoetsluis is probably the most popular area!
Only 30-40 minutes to this area from the ferry, and you have many many places to fish from either off the Voorne canal network where 100lb bags are quite common or the main Harlingviet or other lake systems like the Bernisse.
Bream is the main species and generally they are less than 3lb in size, with ide, perch, and roach also apart from bream they dont seem in great numbers.
http://www.cittaromana.com/en/
The above is not the cheapest of accomodation at all, but the self catering apartments are extremely good, food is great, and it has its own swimming pool. It nearly always has anglers around the complex but the major downside is the bar shuts at about 10.50pm every night regardless of how busy it is....
Cape Helios also seems to be getting a tad more popular and this is closer to a town being only a 5 minute walk etc?
http://maps.google.co.uk/maps/place?hl=en&um=1&ie=UTF-8&q=cape+Hellevoetsluis&fb=1&gl=uk&hq=cape&hnear=Hellevoetsluis,+The+Netherlands&cid=15580044731812558831
Also locally there is "Brielle" that has the Hotel Atlas right in the town centre, which is within walking distance to tackle shop but again nightlife is limited.
Many other anglers look to go further afield from the port and thats Dekoerberg which has just opened up again I believe for anglers.
Its a quieter area apparently with accomodation in a secluded site surrounded by many lakes, rivers, and canals.
The fish here looking at reports from Chris Watson plus others seems to be lot more varied with skimmers, roach, perch, and bream from 3-4lb upto 10lb plus....
You would be better off getting advice from these especially Chris who has been travelling that area a few times a year for a num ber of years.
Hope that helps[

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