Lake Shikaribetsu — View the night sky from Japan's highest-elevation lake

Overview

Lake Shikaribetsu sits in Shikaoitake Town, Hokkaido, holding the distinction as Japan's highest-elevation naturally-formed lake. Positioned at 810m, it's dubbed "Sky Lake." Nestled at the southern edge of Daisetsuzan National Park, this pristine lake is surrounded by primeval forest's silence.

Observation environment

Lake Shikaribetsu's paramount feature: nearly complete absence of artificial light. The nearest town, Shikaoitake center, sits approximately 30km distant, naturally preserving a low-light environment.

Elevation at 810m thins atmosphere, delivering sharper starlight. Clear nights reveal the Milky Way mirrored in lake surface—fantastical phenomenon. Darkness reaches Bortle Scale Class 1—few places in Japan offer such darkness.

Recommended observation times

Summer (July-September) proves optimal; moderate temperatures permit extended observation, and the Milky Way spectacularly crosses overhead.

Winter hosts "Shikaribetsu Lake Kotan" events enabling frozen-lake stargazing—exceptional experience, though temperatures plunge below -20°C, demanding serious cold-weather preparation.

Access and usage guide

About 45 minutes by car from Memuro IC on the Doto Expressway. Lakeside accommodation "Shikaribetsu Onsen Hotel Fuusui" permits overnight stays and nighttime star enjoyment.

Shikaribetsu Lake Nature Center offers summer night-watching tours with guide commentary on constellations—ideal for beginners.

Stargazing tips

Open lakeside locations suit observation, particularly northern shore parking areas. Tripod-mounted astrophotography benefits from lake-surface reflection compositions. However, bear-encounter information exists; avoid solo nighttime movement, carry bells and lights.