My husband, grandson and I took this tour over the glaciers and landed on an icefield. The trip to get there was exquisite as we were able to fly low over over the area. Once we landed we were thrilled by the blue crevasses that were deep into the glacial ice. My 16 year old grandson was so excited he just ran everywhere he could picking up pieces of the ice. Our guide, Michael explained everything so we could understand how they move forward along the ground and how they form over the hundreds of years. I would recommend this company.