gold digga`s
Taphofile That's the name for people who love funerals and graves and cemeteries.
Globetrotters
gravyard
a crescental
put on a cerimony and call them from their graves
People who travel in space are often called astronauts.
A travel agent
Freelance journalist; travel writer.
Do you mean do we call them travel agents or are you looking for the names of the tour operatore themselves? Well we call them travel agents and some of these are: Thomas Cook, Thomsons, Ramsay World Travel, Co-Operative travel, Barrhead travel, Caledonia travel etc...etc... Depending on what you are looking for there are all sorts of different travel agents recommended under different groups whether it be a specialist cruise co-ordinator or just someone to book you a hotel, check on a flight!! hope this has been of help :)
People who travel by ship are called Passengers.
I would call the police to make sure these were not people reported missing at one time or other.
Charities may be the word you are looking for.