I think an influencer marketing can benefit a hotel, restaurant or spa better than a traditional marketing because an influencer marketing are more impact than a traditional marketing. Indeed, an influencer marketing can be a celebrity or simply blogger but this ideas can influence readers, the written diffused on the blog or in the media are followed by many people. For example, for a restaurant a famous person that create a blog and whose try this restaurant. this person made a good or bad critic, the followers go consider  his opinion or the way of thinking. Or again for a restaurant or hotel, comments on trip advisor can persuade people, consumers.

Example of the influencer marketing concept: