We guarantee to run tours with a minimum of four guests. Most trips have 4-8 guests, though we have operated many trips sold out with 15 guests. Depending on the itinerary and time of year we may run a tour even if there are only two or three sign ups. However, in this case we must charge a “small group supplement” of 300€ / guest. If at 90 days prior to departure there are still fewer than four sign ups, we will either cancel the tour and give you a full refund, or we may agree to run the tour. In that case, you can decide what you want to do, pay the supplement or transfer to another departure or cancel your trip for a full refund.