Chichibu & Nagatoro Area

I Looked Into Yamaai no Sato Campsite

2026-09-06

I Looked Into Yamaai no Sato Campsite

This blog keeps digging into campsites, day-use hot springs, and inns, but this time, after a bit of a break, I decided to feature a campsite where you can play in the river.

While browsing through facilities in the Chichibu area, Yamaai no Sato Campsite caught my eye. The fact that you can access the Yoshida River right from the grounds intrigued me, so I decided to look into it.

The Short Version

It seems like a campsite that combines quick access to the Yoshida River right on the grounds for river play with a free large communal bath — a happy combination for indoor types like me.
Rakuten Mobile's signal came back as a C rating on the official tool, which doesn't seem like a particularly good result.

I've summarized the details below.

What Kind of Place Is Yamaai no Sato Campsite?

It's a campsite located in the Kamiyoshida area of Chichibu City, Saitama Prefecture, apparently run by a facility called Ryusei no Machi Yoshida. The operating season runs from April to the end of November, with the campsite closed from December through March.

The biggest feature is definitely how close it is to the Yoshida River. Apparently the location lets you reach the river for play in about a one-minute walk from the grounds. Nearby, there are spots worth visiting like Kamanoue Farm, where you can pick fruit, and Kakkaku Dam (also known as Nishi-Chichibu Momoko Lake), both reachable in about ten minutes by car. That said, since I'm not someone who drives, I felt it would be worth checking in advance how far you can get on foot or by public transportation.

Also, regarding the adjacent Yamaai no Sato Fishing Park, the official site noted at the time I checked that it was closed for a while, so if you're planning to visit for fishing, it might be safer to inquire ahead of time.

Checking Rates, Reservations, and Facilities That Matter to an Indoor Type Like Me

As for rates, the facility usage fee is 1,000 yen per person per night, and the tent site fee is 4,000 yen per plot. Using an AC power outlet costs an extra 1,100 yen, and it seems only some of the plots have power available. Payment is apparently cash only, so it's probably a good idea to come prepared.

Check-in is from 1:00 PM for tent sites and from 3:00 PM for cottages and lodges, and early check-in or late check-out is available for an extra 500 yen per person. Reservations open three months before the month of your stay, and it seems a phone call is required to finalize the booking. (I haven't included the phone number in this article, so it's probably best to check the official site before calling.)

  • Restrooms: Each cottage is fully equipped. The outdoor restrooms are also flush toilets and reportedly kept clean
  • Bath: The large communal bath called Katarai no Yu is apparently free for guests to use (fits 5 to 7 people)
  • Shop: Yes, there is one. It apparently sells ice cream, snacks, seasonings, and more. Vending machines are available 24 hours a day
  • Rentals: Futons, blankets, pots, and other items are apparently available
  • Wi-Fi: Not mentioned on the official site, so it seems unclear whether it's available

As an indoor type, the fact that the large communal bath is free really caught my attention. Not having to worry about bathing even when sleeping in a tent seems like it would make things a lot easier mentally.

Komorin
Komorin

Having a free large communal bath is a huge plus for me personally. Sleeping in a tent makes me a little nervous, but if I don't have to worry about bathing, I feel like I can relax a bit more.

Rakuten Mobile Signal Conditions

When I checked the location of this facility using the official "My Area Connectivity Simulation" tool, the overall rating came back as "C." Since this is the actual result I got from the tool, I'll share it as-is.

Given that it's located along a river in the mountains, it seems wise to be a bit cautious about the signal rating. Rather than planning around video streaming or heavy data use, it seems better to plan for mainly calls and messaging.

Komorin
Komorin

Hearing about a C rating makes me brace myself a little, but maybe spending time listening to the river's murmur without touching my phone is exactly the kind of experience camping is meant to be.

Wrapping Up

To sum it all up, Yamaai no Sato Campsite left me with the impression of being a campsite where you can play in the Yoshida River right from the grounds and also enjoy a free large communal bath — comfortable even for indoor types like me.

It seems worth confirming things like the operating season, reservation method, and the cash-only payment in advance. There also appear to be hot springs and roadside rest stops nearby, so it might be worth planning some additional stops along with your camping trip.

As for signal strength, the official tool gave a C rating, so if connectivity is a concern for you, it might be reassuring to check the Rakuten Mobile official tool ahead of time.

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