Standing on a frozen lake, arm in arm with my best friend watching the Northern Lights dancing over our heads was awesome.
The huskie dog ride was truely amazing, it was great racing through the countryside in control (mostly in control!) of a team of dogs.
Base camp was special too, sledging down the hill, laughing lots, and forgetting that we had other lives, which involved work and responsibilities, it was good to be a child again. The sauna and hot tub helped ease the aching muscles.
The clothing provided is more than sufficient, we brought clothes for the trip that we didn't wear. In the evening the dining room is very warm, so we wore jeans and light tops, we took far too much clothing with us. Base camps snow boots were great, so we only actually wore our boots for travelling to camp and home again. Rucksacks, flasks, head torches are all provided.
Base camps bar was rather expensive, as is Finland, so if you like a drink, consider bringing a bottle with you. Or if chocolates your thing, take some of your clothes out of your case, and fill the gap with goodies :-))