Samozvanets (impostor) pulsating hot spring is located on the Velikan's Platform, near the trunks of a fallen birch.
Click "Play". Set quality to 1080p. Choose fullscreen mode. Enjoy!
Use anaglyph glasses to watch 3D video on any monitor with some degradation of colors. For best quality use active 3D-glasses (NVIDIA 3D Vision etc.)
Click 3D button and choose the appropriate mode in the YouTube player settings ("red-cyan" etc. for anaglyph glasses, or "HTML5 Stereo" for active glasses).