A wide range of boat trips depart from Middelfart Gl. Havn and Fredericia Gl. Havn (The old harbor). There are typically about 100 departures in the summer of both whale watching tours that other boat trips on Lillebælt. Boat trips are either aboard galleas Aventura, or tour boat Mira3. From Fredericia you can only go on board the Aventura in July and August.
Remember that you can order a packed lunch from selected butchers in Middelfart/Strib. Ideal for a boat trip.