There are nice boat trips to be had here! 
I'm born and raised by the sea, had a boat of my own before my teens, been living of the sea through serving in the Swedish Royal Navy, so very little impresses me when it comes to boat trips. This was a different thing!
http://www.vattenriket.kristianstad.se/eng/index.shtml
One of the many rivers of Sweden runs out in the Baltic Sea at Åhus, south Sweden. It's called River Helge (Helge means sacred). It runs through wetlands with loads of interesting sights, animals and plants.
A project of nature preservation created "Vattenriket" (The Realm of Water) to protect the wetlands and educate people on the flora and fauna there. If you ever visit Kristianstad or Åhus in Sweden - be sure to go for a boat ride up the river Helge. It's well worth the fiver!
