We rented 2 bungalows with 7 adults, 1 junior high school student, and 2 elementary school students. It was a cloudy day with rain forecast, but playing in the river was great!Adults can also play in shorts and T-shirts. However, during times when there are many groups of people coming for a day trip and it is crowded, you will be hit with water spray and water guns from other children without mercy.If the depth is shallow and it's up to 4th grade, you can put your butt in the float and swim.There is a tent that is often used for drying laundry, so is this the correct answer? ! I thoughtWe recommend that guests park at the back of the non-concrete parking lot (close to the wooden bridge) and rent a large-tired cart. There were no written directions, so I asked the staff for some quick guidance, and while looking at the brochure, I was able to find an easy route with few hills. The bridge is not wide enough, so please wait for someone coming from the other side.The bungalow itself had a kitchen with a refrigerator, microwave, IH, and sink, so it felt like I was staying at a friend's house in a one-room apartment. Bunk beds are a big hit with elementary school students, but the ladders are attached at right angles, so it's probably tough for people around 40. Each has its own light and outlet!I have two electric fans, but I had them on all the time except at dawn.The sound of the flooring and sliding doors is quite loud.The water pressure in the shower was strong and the toilet was clean, but the toilet was at the back of the changing room, so when someone was taking a bath, I used the toilet near the kitchen (water supply), but there were no bugs and it was a shower toilet, so it was comfortable! There was an outlet under the shelf in the changing room, but it was far away from the built-in mirror.The 1m extension cord I chose at DAIS◯ without thinking because it was cheap worked for the first time.We had a barbecue on a wooden table and chairs between the two buildings (in front or on the side of each building), but the chairs were not dry due to the rain, so the newspapers we used to wrap the pots and knives came in handy.I didn't have a lantern prepared, but I managed to change the direction of the lights in the cottage...The group with lanterns had fun outside until quite late, but it was quiet.There are also swings and a jungle gym, and the next morning I enjoyed the swings and the river near the kitchen privately, but my feet got stuck in the sand and I got soaked! I'm glad I wore a T-shirt and shorts as loungewear...If you want to dip your toes in the river for just a little while, be sure to bring a change of clothes and a ziplock bag (wet clothes bag). Also, wear sandals or marine shoes that are not made of fabric. I was worried about the sandThere was a stylish sauna, so I should have made a reservation in advance.Good thing I brought it with meHat (for sun protection and light rain), roof-only tent, folding chair for long periods of sitting, extension cord, hair dryer, mobile charger (Wi-Fi available), newspaper, coffee, milkS’mores (roasted celery marshmallow skewers, marshmallows, chocolate sauce, crackers)The s’mores matched the saltiness of Li◯◎I forgot and went out to buy moreLantern, sugar, salt (for things that don't go well with salt and pepper), children's juice (no vending machine), marshmallows (s'mores were too tasty), fireworksThere's surprisingly not much to do in the room after that, so I wish I had a TV.Moths and crickets got in, so open and close the front door quickly! (There was insecticide)