Arctic advanced is a terrific and friendly small tour company. They made everything seamless. I found them just by searching the internet as I planned our trip to Iceland. My first interaction was with Diana poon who was knowledgeable and friendly and prompt. She booked a 4 day tour for us based on my wishes. It was not cheap but well worth it. When I had to possibly cancel they waived the 30% fee without hesitation. Fortunately I called them within 3 days and rebooked it AO was amazing as a tour guide. I feel like we made a friend. He was knowledgeable and clearly receptive to our needs whether it was food stops or bathroom stops. He seemed to anticipate what we wanted One of the tours was 12 hrs but he had the same energy at hour 12 as he did hour 1. I plan on coming back for the northern lights next year and will definitely use this wonderful family run company.