National park The Biesbosch is a very water rich nature park in The Netherlands. It plays an important role in the Dutch fresh water supply. There are three big water reservoirs where the water is filtered and cleaned. These are the only area's where there isn't any recreational boating allowed. The Biesbosch is a wonderful region, Always walking a fine line between recreation and preservation.
It is a haven for many bird species. Since 2011 there are 2 breeding couples of sea eagles and since 2016 a couple of fish eagles. If you are a bit of an ornithologist and a kayakker, this is a great place to set up camp. It is an area where you can go on exploring, I am not saying for a lifetime, but a long time it will be interesting. Especially with the kayak you can get to places where the bigger boats, hence the bigger crowds can't get to.
I found a great Topographical map on Wikipedia.nl it can be a usefull tool during your wanderings. Or you can buy the ANWB topographical map nr. 15, There are a few places with a kayak pier but sometimes it's the property of a commercial outfit, so tread lightly, be respectful and negotiate. :-) Or, drive past them, like at the marina of Oversteeg. You may use the pier, but sometimes you have to pay. But if you follow the Deeneplaatweg until the end of the road, there is a big parking space and a good place to launch your kayak.
On the other side of the Biesbosch there is the Vissershang marina. If you park outside the marina, you only pay for the use of the pier or ramp, for the small cost of 3€. But next to the rest area there is a small pier free to use, launching directly in the Aakvlaai or you can park your car on the marina premises, this cost 8€ and may last two days. You can't camp on the grounds of the marina but why would you want to do that if you can camp in the Biesbosch.