marine tour business means any trade, industry, employment or service, whether or not for profit, relating to the observation from the water or air of plants, animals or the landscape or seabed of the park or cultural resources in the park, other than such trade, industry, employment or service when carried out by a person on behalf of the superintendent for the purposes of the management of the park, and includes excursions, cruises, fishing, diving, kayaking and flights over the park in the course of that trade, industry, employment or service. (entreprise d’excursions en mer)