Been 6 times to Holland and its not easy, its all about location and local rules and regulations.
Loads of water to go at and most of it is free or only a couple of Euro's to fish.
Most of my trips have centred on Niukoop Plassen which is an inland sea of a lake near Gouda. This holds the Dutch record common which is around 70Lbs. It is a challenge though, mostly wild commons that fight like their lives depend upon it plenty of 20's but the bigger fish are harder to come by. Had mirrors to 28 and commons to 29. also grass Carp to 28.
Have also fished around Zwolle where there are some good waters and rivers to go out but again local rules around night fishing can be difficult in some places.
In my opinion there is lots of potential but finding the right place can be tough. We have never been on a guided tour but i know they exist. if its virgin territory for youi this may well be your best choice
cheers
