Admiralty Dive Center is the largest dive shop on the Olympic Peninsula at 1700 sq. feet of retail, classroom, and service space. In addition Admiralty Dive maintains a cleaning station, a dedicated fill room with independent air intake, and a separate compressor room for your safety and comfort. Air and Nitrox are always available, call ahead for argon and tri-mix. Port Townsend is known for many things, Victorian architecture, classic wooden ships, and the arts. What you may not know is that we have some of the best diving in the Pacific Northwest in our backyard. The variety of diving sites, ease of access, and abundant sea life keep people diving weekend after weekend.