Summer Activity NAC’s summer adventure line-up has something for everybody. Niseko Summer Rafting Family Rafting NAC Adventure Park Niseko Spring Rafting River SUP Platinum Rafting Ducky MTB Touring Trekking River Kayak 2022 NAC Day Camp Activity + Lunch Packages Big group activity bookings NAC Special Packages Discount for the activities Restaurant JoJo's menu for a big group