More people are booking with G Adventures closer to departure as travel restrictions ease and more countries open their borders.
Increasing numbers of first-time bookers are also being attracted to its tours.
The small group operator is offering a 20% discount on its Classic programme of trips for bookings made by November 1 for travel until October 31, 2022.
The company’s 1,000th tour since resuming operations last September departed last week.
G Adventures claims to have run more tours than any other adventure operator since the onset of the global pandemic, supporting employment and boosting local economies in countries dependent on tourism such as Costa Rica, Ecuador, Egypt, Kenya, Morocco, Peru and Turkey.
EMEA managing director Brian Young pointed to the recent change in travel restrictions, with more destinations opening their borders as spurring UK travellers into booking their next trip, including long-haul, closer to departure.
He said: “Celebrating 1,000 departures is a real milestone for G Adventures. Throughout the pandemic, we’ve remained committed to offering our community of global travellers the opportunity to explore and adventure, in a safe way.
“We’re running a whole host of destinations, ranging from Greece, Italy and Iceland to Costa Rica, the Maldives and Kenya, and are experienced in all the new protocols required for travel as the world reopens.
“The shortened booking window proves travellers from Britain are trusting us to get them back out into the world sooner rather than later.
“We’re seeing a rise in first time bookers, as more travellers turn to the adventure and touring sector for their next holiday and we’re delighted to be able to offer a healthy 20 percent discount to help travellers get back out there and reconnect with the world.”