While it's common for travellers to book a tour or activity offline in your office or at your destination's visitor information center, the ability to book and pay for a trip online, one day in advance, via mobile, is relatively new. Previously, last-minute bookings have mostly revolved around bed nights sold by hotels and other types of accommodation providers. But that trend is slowly, and surely, seeping into the tours and activities sector as more tour and activity operators invest in a professional website with online booking and payment capabilities.