Old school snorkel won't cut it. This snorkel extends from the front of your mouth, not going behind your head. This allows for easy dunking by tipping your head back. Also comes with nose clips... but I just pinch my nose. It really changes/enhances the experience. It is literal immersion. It is strangely calming given the normal invigoration that comes with cold plunging. If you seek to dunk, the snorkel is key!