Gunma Prefecture is Japan's hot spring capital, mountain playground, and silk heritage land — a landlocked prefecture north of Tokyo where volcanic peaks, therapeutic onsen, pristine highland forests, and the UNESCO World Heritage Tomioka Silk Mill define a destination unlike anywhere else in Japan.
Transport tips
Travel smarter, not harder.
Tip
Buy multi-day or weekly transit passes if you'll use public transport more than twice a day.
Tip
Keep small change handy for buses and shorter trips where contactless may not work.
Tip
Avoid rush hour (typically 7-9 AM and 5-7 PM) for a more comfortable journey.