A Special Gift of Nature, Only in Spring: Birch Sap

As Hokkaido’s long winter comes to an end and signs of spring arrive in the forest, the birch trees begin to circulate the nourishment drawn up from the earth through their trunks.

For just a few weeks at this time of year, it becomes possible to collect birch sap (shirakaba jueki). Dripping quietly from the trees in the thawing forest, this clear sap carries a subtle natural sweetness — a special gift that symbolizes spring in Hokkaido.
In the SONEKA forest, too, this seasonal experience begins with the arrival of spring.

What Is Birch Sap?

Birch sap is a natural tree sap that can be collected from birch trunks only during a short period in spring.
It is the water of life that birch trees draw up from the melting snow and circulate to nurture their new buds. Clear and light, it is a drink straight from nature, with a faint sweetness and a hint of minerals.

In Northern Europe, Russia and other regions, it has long been enjoyed as a healthy spring beverage.

A Special Time to Savor the Forest’s Bounty

At SONEKA, we make the most of the natural environment of the Watsu forest to share the bounty nurtured by Hokkaido’s land through culinary experiences.

During birch sap season, guests may also enjoy fresh sap collected in the forest in dishes and drinks.

A glass savored while feeling the forest air is a truly special moment to experience spring in Hokkaido. Time spent with nature is itself a luxury unique to this land.

Exclusively for SONEKA guests, the “Birch Sap Collection Experience Tour” is available free of charge from late March to early April 2026.