Hologram personal trainers, underwater hotels and space travel could all be part of the travel experience by the year 2030, according to respondents of a recent survey.

Commissioned by Marriott Rewards Credit Card from Chase, the survey featured 1,000 travellers (aged 18-67) who each spend at least five nights per year at hotels for business, pleasure or “bleisure” (i.e. a combination of the two).

Asked how they think travel might evolve over the next 15 years, some of their answers might surprise you. Here’s a look at their predictions: