if you don't want to pay for the chocolate tour, google them and find the website.
they list where they go and if you write down all those places you can find them on your own! i did that and so long as you use Where Is and not google maps(all wrong!) it works very well.
also a carriage ride thru the streets is fun, romantic too :-)
oof and they aquarium - you can visit with the penguins up close