Halcyon Hot Tips Don't Get Left Behind. Do you have the right Surface Marker Buoy for your environment? Your marker buoy should be tall enough to be viewed over swells, and Halcyon makes one of the top markers in the industry, our 6-ft CC DAM. Halcyon is heating things up! Introducing our drysuit Heater Packs for divers who need a little extra warmth on their dives. Cutting edge. Go to the end of the line in low-profile style with the new Explorer Knife. Main menu Recreational Diving Technical Diving Halcyon In Action Halcyon Dealers The Halcyon Story BC Systems Halcyon Regulator Systems Surface Markers and Lift Devices Lighting Systems Guideline Devices Dry Suit Accessories Dive Essentials Halcyon Dive Vehicles Logowear RB80 Rebreather Halcyon Frequently Asked Questions Halcyon Product Manuals Halcyon Videos Technical Services The Halcyon Warranty Halcyon Product Recall Information The Halcyon Story Contact Halcyon Dealers & Distributors Dealers Distributors Underwater images courtesy of David Rhea ©2008-2014, Halcyon Dive Systems Google+