Get wooly socks, parkas, head and neck coverings, and good gloves. We had to wait around a bit outside before the ride, and it got pretty darn cold. On the sled, they will cover you. |
Also, there is a hotel near the airport that has a water park: https://www.sokoshotels.fi/en/hotels/vantaa/break-sokos-hotel-flamingo |
SAS is a good option also. Flights from IAD and then connect in Sweden is the way it used to work. |