I suppose the guy is a climber, or he's on an adventure holiday.

我猜这个人是一个登山者，或者他正在探险旅游。

As more and more countries open up to tourism, more travel agents will be needed, but the real demand, will be for guides to take groups and even individuals on adventure holidays.

随着越来越多国家发展旅游业，旅游公司需求量将大增，但最迫切的是导游需求量，需要能够带团，甚至是能够带领探险旅行的个人行。