Natural hot springs are often very popular sights, full of visitors. But how about a hidden hot-spring? The Homestead Caldera is one of such spots. This natural hot spring is located in Midway, Utah, hidden inside a 16.7 m high limestone rock. A large natural opening, which serves as the only entrance to the crater, is located right above the spring.
In 1996 another entrance was built in the rock to make access easier. Thus, summiting the crater is off-limits nowadays and you can enter it only from a side tunnel. The tunnel takes visitors to special decks where they can enjoy diving, snorkelling, or just swimming and soaking in the mineral-rich spring.
Guests can also enjoy a self-guided tour that features some historical, geological, and archaeological aspects of the crater. The dome was formed some 10,000 years ago by the deposition of various minerals. Nowadays the water is piped out of the crater but the dome still continues to grow, much more slowly. The constant changing of the water, due to the piping process, also influences the temperature.
The water in the spring remains 35.5 degrees Celsius year-round. The visibility of the water is one more unique feature of this place. You can easily see the birds in the sky through the top of the dome, even from the bottom of the spring, which is 19.8 m deep. It is also the warmest diving spot in the USA.