Outdoor adventures in Tokyo and Gunma
River Joy Outdoor Activities
River Joy runs outdoor experiences in Tokyo and Gunma, from rafting and canyoning to SUP, fishing, sauna, ski and snowboard lessons. Use this page to choose your activity and open the English booking calendar.
Summer Activities
Pick the tour that feels right for your group, then check the English booking calendar for open dates.
An easy day trip from central Tokyo. Great for families, friends and first-time rafters who want a real river adventure.
Paddle your own boat downriver and learn how to move, turn and read the current at a comfortable pace.
A family-friendly rafting experience in Gunma with gentle fun, big smiles and plenty of splash.
Walk, slide and jump through a natural stream. A summer favorite for families ready for a little more adventure.
Start with a beginner-friendly route or step up to a more challenging paddling experience as your confidence grows.
Stand up, paddle and enjoy the river from a new angle. SUP is a fun balance challenge with a relaxed outdoor feel.
Unwind by the river in a private outdoor sauna. A calm, refreshing choice for couples and small groups.
Enjoy a slower day outdoors while trying mountain stream fishing. Beginner and expert courses are available.
Winter Activities
Private lessons are available for first-timers, families and riders who want to improve. Choose the lesson and open the English booking calendar.
Ski
A private ski lesson for beginners, families and anyone who wants a calm, safe start on the snow.
Snowboard
A private snowboard lesson for first turns, better control or freestyle progression with focused coaching.
Kids Snow
For children who want to enjoy snow at their own pace. Contact us on LINE and we will suggest a good plan.
Snowshoe
Walk through quiet winter scenery on snowshoes. Contact us on LINE for dates, conditions and tour details.
Access Guide
Meeting places are different for Tokyo and Gunma tours. Please check the access page before you leave.
Mitake, Ome City, Tokyo. There is no private parking at the base, so please read the parking guide before coming by car.
Open access guide GunmaOigami Onsen area, Numata City, Gunma. Please confirm the base address before joining your Gunma tour.
Open access guide