Midway crater and the Ice castles

Midway, Utah is a pretty well off community west of Heber, Utah with a resort called Homestead that is on the upper end of 3 star accommodations (to the point of being overpriced IMHO). However, it's also home to a couple of very unique attractions: The Ice Castles and the Midway Crater.

If you aren't familiar, the Midway crater is really a hot spring with a very unique formation. Basically there is a large open topped dome of natural rock that encases the primary portion of the spring and the entrance is through a tunnel burrowed into the rock, and the interior is full of fascinating rock and crystal formations that are naturally illuminated by sunlight. I have been to the location a couple of times, but have never actually gone into the spring itself, but it's said to be very popular with scuba divers and is also continually researched by archaeologists.  It's only open seasonally, but can be accessed by reserving a paying for at time with the resort. 

The aforementioned cool illuminated rock formations. 

For the winter season in which the spring is closed, at the same location is also the Ice Castles, which started here in this state by a relative of my wife, so going there is pretty much an annual occurrence for us, and is certainly like something straight out of a fairy tale or the Disney movie Frozen. It's pretty much just a neat thing to gawk at once you are there, but still fun. Feel free to check out thier site to take a look at what it's actually like: https://icecastles.com/.

Great place to take someone special to you.

In any case, there's plenty of good reason to visit the area in general, but I'd say there a a couple of the most interesting.