Just You, which is owned by G Adventures, is also offering price match, price promise and guaranteed loyalty benefits as part of the programme for 2018 and 2019.

The operator is introducing 12 new tours to destinations such as the Galapagos islands, the Inca Trail in Peru and Transylvania in Romania.

Just You has also increased its range of dedicated single traveller river cruises on the Douro, Seine, Volga, Danube and Rhine.

Alastair Campbell, the operator’s managing director, said: “Just You has incredibly loyal customers and we want to reward them and our new customers alike, which is why we have revealed a new loyalty guarantee.

“Many of our customers like to book their holidays early, with our new guaranteed departures, guaranteed price match and guaranteed price promise, our customers can book with us in confidence knowing that they are getting the best deal for that particular tour.”

Just You’s eight-day Bucharest and Enchanting Castles of Transylvania tour of Romania is priced from £1,359.