No special equipment is required. There are no special requirements for clothing. Clothing and shoes should be athletic, comfortable, waterproof, and weather-appropriate. Special trekking shoes are not required. If there is one, then you can take it. If not, then you shouldn't buy it on purpose. Athletic sneakers and boots are quite suitable, as long as the sole is not smooth and slippery.
Shoes should be worn, not new. At least 2 pairs are required. Trekking poles are also optional. The route is of medium difficulty and in fact sticks are not particularly needed. Some tourists use them, some go without sticks. If necessary, they are available at the box office.
You will also need: a swimsuit for thermal springs, flip-flops, a raincoat. You should not take a large backpack on a hike. Of the mandatory things that you should have in your backpack are some personal hygiene items and a water bottle. If you are using it, you can take a thermos.