The Poseidon Xstream is Poseidon’s most recent regulator series and may be one of the answers for ice divers who are looking for a regulator that works well in extreme conditions. It is one of the few so-called “upstream regulators”, meaning the second stage needs to be pressurized in order to close. There is no piston that can become dislodged, misshaped or mis-aligned. Instead, a round stainless steel ball rests on the valve to always operate perfectly. The first stage is not environmentally sealed, but instead uses comparably huge openings to effectively allow water when diving in ice cold lakes, where the water temperature is around 3-6 degrees Celsius, to warm the metal parts of the XStream, preventing any form of ice build-up.
The Poseidon Xstream – An Ice Diver’s Regulator
- Editor
Master diver Mike Hughes takes you on a whirl wind tour of the inner sanctum of Inner Puget Sound. 
Often called the “Sunrise Side” because it is located on the east shoreline of Michigan, Alpena calls to divers from out of the past.
When you think of diving for tropical fish, you probably don’t think of Rhode Island...especially in late September.
Come visit Isla de Guadalupe with writer Bruce Watkins and see the best place to observe and photograph these fascinating animals.
Meet the newest member of the Dive News Network, and no we aren't talking about a person!
For over 15 years Ernie Arellano has been in the forefront of dive industry innovations for other companies but now Arellano is striking out on his own. 
