Many divers find that night diving is their favorite type of diving. As with all specialty diving applications, procedures are different than those associated with open water diving. The purpose of this course is to acquaint the open water diver with the procedures, techniques, and potential hazards associated with diving at night, or in limited visibility. Becoming familiar with the use of dive lights, and night diving techniques such as navigation, buddy system procedures, communications, buoyancy control, and interacting with nocturnal aquatic life, the diver can safely enjoy night diving.

Nitrox is a breathing gas that has a lot of benefits for both new and experienced divers. Benefits include longer bottom times, shorter surface intervals, longer repetitive dive times, and reduced post-dive exhaustion. Through a hands-on, active learning session, this course covers the use of nitrox mixtures from 22 to 40 percent oxygen.

Divers are intensely fascinated by navigation. It allows them to make their way back to a special spot discovered on an earlier dive. They use the tricks and techniques of navigation to find an ideal exit point at the end of a dive without the need for an uncomfortable surface swim. Your SDI Underwater Navigation Specialty course will help you overcome the obstacles inherent to finding your way underwater. You will learn how easy and simple navigation can be and how it will help you both above and below the surface. During this course, you will review natural aids such as sand ripples or reef formations, which can accurately predict your route. Tools such as mechanical or digital compasses are a surprising challenge to the novice but we will help you unravel the challenge and teach the practical skills and techniques you?ll need to use them effectively.