Bookings for European walking holidays are claimed to be up by 20% compared to this same time last year, according to specialist operator HF Holidays.
Austria and Croatia have performed particularly well, as have guided walking weeks in Portugal and the Canary Islands.
Additional capacity on key dates this year is being added where possible, with further expansion planned for 2015.
The operator features almost 40 European walking holiday destinations for small groups based in independent hotels. HF Holidays operates 19 country houses in the UK as bases for guided walking and leisure activity holidays.
European product manager Steven Purdham said: “We are very pleased to see such high demand for our guided walking holidays in Europe. Sociable walking in superb destinations is our passion at HF Holidays, and it is great news that more and more people are getting on board with this enthusiasm.”