Activities on Lake Aoki:
Firefly Viewing (Summer): During early summer evenings, Lake Aoki transforms into a magical scene as countless fireflies dance along the water’s edge. This guided experience is limited to small groups by reservation only and offers a rare chance to witness fireflies in their natural habitat.
Stand-Up Paddleboarding (SUP): The calm surface of the lake makes it ideal for SUP, especially in autumn when fiery foliage colors are reflected in the water. On clear days, you can even see the mountains mirrored on the surface.
Canoeing & Kayaking: Aoki’s expansive waters are well suited for a peaceful paddle, with rental shops available along the shore.
Swimming: In summer, the cool, fresh waters offer a refreshing break from the heat.
Fishing: The lake is home to a variety of fish species and is popular for casual anglers.
Camping: Campsites and small lodges are located along the lake’s edge, making it a favorite spot for families and outdoor enthusiasts.
Why Visit Lake Aoki?
Unlike its neighboring lakes, Aoki is particularly known for its size and clarity, giving it a tranquil, open atmosphere. The combination of water activities, seasonal beauty, and evening firefly displays makes it a unique stop for those exploring Omachi and the Northern Alps.
Connection to the Three Nishina Lakes
Lake Aoki is just one of the Three Nishina Lakes, each with its own character and seasonal attractions. While Aoki is famous for SUP and firefly viewing, Lake Nakatsuna offers the traditional winter pastime of ice smelt fishing, and Lake Kizaki is popular for motorboating, wakeboarding, and lakeside camping.
👉 For a full overview of all three lakes and their activities, see our guide:
[Water Fun Activities at the Three Nishina Lakes]