This was the first time I was able to go to Disney with my iPhone 7 Plus. Lightroom Mobile also just released an update that will allow HDR in RAW (DNG) format. The new HDR mode works by automatically scanning the scene to determine the correct exposure range and then capturing three DNG files which are then automatically aligned, merged, deghosted, and tonemapped in the app. You get a 16-bit floating point DNG, with all of the benefits of both an HDR and a raw photo, which is processed by the same algorithms with the same quality as the HDR technology built into Adobe Camera Raw and Lightroom. I don't like the default tone mapping, so I did some post-processing on the image.
Have fun capturing the magic of Disney.