Excursions offered by accommodation providers are often integral parts of the tourism package. Excursions are added to increase the attractiveness of the accommodation product with the aim being to attract guests in the first place and possibly induce them to stay longer and spend more. Excursions can also be the main appeal of the vacation where accommodation itself (the lodge or the hotel) plays a secondary role, the key examples of this being the great variety of niche and special interest cultural tours being sold, many of which often travel along specific routes.