Hanana’s Winter Food Trip: Kusatsu Onsen and Warm Onsen Manju

Onsen manju, steamed buns filled with sweet bean paste

This guide is based on official information and our own research, checked on November 12, 2026. Dates and hours may change, so please check the official website before you go.

Written by Hanana, with photo notes from Hanakiki

Hi, I’m Hanana! Kusatsu Onsen in Gunma is one of the most famous hot spring towns in Japan. In the center of town, steaming hot water flows down wooden channels into a turquoise pool called the Yubatake. In winter, with snow on the roofs and steam everywhere, it feels magical. And the streets smell sweet, thanks to freshly steamed onsen manju.

目次

At a glance

  • Where: Kusatsu Onsen, Kusatsu Town, Gunma Prefecture
  • When: Lovely all year; snowy from about December to March
  • Access: About 2.5 hours from Tokyo: JR limited express to Naganohara-Kusatsuguchi Station, then about 25 minutes by bus. Direct express buses from Tokyo also run

What to eat & try

Onsen manju

Onsen manju are small steamed buns filled with sweet red bean paste. They’re sold in almost every hot spring town in Japan, but Kusatsu’s main street has many shops steaming them all day long. Some shop staff may offer you a sample on the street as you walk by. The warm buns make a perfect snack after a bath.

Onsen manju, steamed buns filled with sweet bean paste
Onsen manju, steamed buns filled with sweet bean paste (Photo: M yanagisawa / Wikimedia Commons, CC0)

More hot spring town snacks

  • Onsen tamago: Eggs slowly cooked in hot spring water, with a soft, silky center.
  • Hana-mame: Large sweet beans, a mountain specialty of Gunma.
  • Soba and maitake tempura: Warm soba with mushrooms from the mountains is a cozy winter meal.

Things to try

  • Watch “yumomi”: Kusatsu’s water is very hot, so people traditionally cooled it by stirring it with long wooden boards while singing a folk song. At the Netsunoyu hall next to the Yubatake, you can watch a yumomi and dance show, and even try stirring the water yourself.
  • Hot spring hopping: Some of the town’s free public baths are open to visitors, and there are larger day-use bathhouses too. Follow the posted rules at each bath.
  • Foot bath: Near the Yubatake, there are free foot baths where you can warm up without changing clothes.

What to see

The Yubatake

The Yubatake (literally “hot water field”) is the symbol of Kusatsu. Huge amounts of hot spring water come out of the ground here every minute and flow through wooden channels to cool down and collect yunohana, mineral deposits used as bath salts. At night, it’s lit up in beautiful colors.

The Yubatake hot water field in Kusatsu Onsen
The Yubatake hot water field in Kusatsu Onsen (Photo: Aspere / Wikimedia Commons, CC0)

Sainokawara Park

A short walk from the town center, this park has hot water flowing through a rocky valley. In winter, the steam rising from the snowy rocks is a striking sight. A large open-air bath is also in the park.

Sainokawara Park in Kusatsu
Sainokawara Park in Kusatsu (Photo: photoAC)

Hanakiki’s photo spot

Hanakiki’s camera note: Walk around the Yubatake to the side of the wooden channels and shoot along them, so the steam and the waterfall are in the same frame. After dark, the lights make the water glow. On cold mornings, the steam is thicker, so come early for the most dramatic shots. Watch out for icy paths!

Event info

Yumomi and Dance Show (Netsunoyu)

  • Six shows daily: 9:30 a.m., 10:00 a.m., 10:30 a.m., 3:30 p.m., 4:00 p.m., and 4:30 p.m. (regular schedule)
  • In winter, show times may change. Last winter, they were 10:00, 10:30, 11:00 a.m. and 3:30, 4:00, 4:30 p.m. from December to February.
  • Admission is paid. No reservations: tickets are sold at the counter starting 30 minutes before each show. Payment is cash or PayPay only, so bring cash.

Official website: Kusatsu Onsen Tourism Association: https://www.kusatsu-onsen.ne.jp/

Please check the official website for the latest information before you go.

Travel tips

  • The water is strong: Kusatsu’s hot spring water is very acidic and hot. Keep your baths short, about 3–5 minutes, and drink water. Don’t bathe after drinking alcohol, get out if you feel dizzy, and check with your doctor first if you have heart or blood-pressure conditions. The acidic water can irritate sensitive skin, so rinse off with fresh water afterward.
  • Bath manners: Wash your body before entering, don’t put your towel in the water, and tie up long hair. Some baths have rules about tattoos; check each one.
  • Snow driving: Roads to Kusatsu can be snowy and icy. The bus is a safer choice in winter.
  • Bring a small towel: It’s handy for hopping between public baths.

Book your trip

よかったらシェアしてね!
  • URLをコピーしました!
  • URLをコピーしました!

この記事を書いた人

食いしん坊のハチワレ猫。平日の晩ごはんに頼れるミールキットや、贈って喜ばれるお取り寄せ、おいしいものを目当てに出かける旅の情報を、わかりやすくご案内します。運営・監修:はなきき(フードコーディネーター/ISO審査員)

コメント

コメントする

CAPTCHA


目次