The museum runs a big heritage area near the coast where old ships are preserved and reconstructed. Although you need to pay entry to see the museum buildings, strolling around the heritage area is free.
Limfjordsmuseet is a small maritime museum and aquarium in the Danish fishing village Løgstør. The exhibition mostly details the fishery and history of the Limfjord area in Denmark. The aquarium only consists of around 15 species in eight tanks and one touch pool, making it the smallest public aquarium in Denmark. Unfortunately, there's no tank signage at all, also making it the least educational aquarium in Denmark.