Wetlands Safari organizes guided kayaktours through the back waters of Amsterdam, only for groups (10 till 20 persons).
Price is €37,50 p.p. including kayak, picnic and guide (the guide gives besides instructions also some info about the neighbourhood)
Duration around 3 hours

For years  Wetlands Safari is friend of Landscape North Holland. All the donations are going to this organization.

For groups 10 till 20 organize Wetlands Safari with kanoschool Amsterdam kayak tour through the backwater of Amsterdam

Not a picture yet,… but in spring time you will read about Wetlands Safari in the Lonely Planet Traveller Magazine,..It was great to have them in the canoe yesterday!!!

Article: http://www.huffingtonpost.com/rick-steves/wetlands-safari–canoeing_b_5326354.html

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Van Rick Steves
Wetlands Safari — Canoeing in Holland

An amazing thing about Amsterdam is that, in 10 minutes (by bike or public bus), you can be in the wide-open polder land — the vast fields reclaimed from the sea where cows graze, tiny canals function as fences, and only church spires interrupt the horizon. A fun way to experience this is by canoe with a local guide. And that’s the mission of Majel Tromp, a friend who runs Wetlands Safari (which I’ve recommended in my guidebook for many years). In a couple of months, I’ll be taking my film crew on a canoe ride with Majel.