Yes, for the most that is where you can find them. And usually very close to the shore line of small lakes.
The two species differ by the shape of the leaf itself. One is quite round and the other i a bit bigger and have a more elongated shape. (The one above is the elongated one...)
Good luck with the hunt for sundew, it's a rewarding subject to capture. Looking forward to see your results.
Cheers, Erlend