by admin | Jul 10, 2024 | Advanced Open Water Diver
The eyeball has three layers, each formed by various components. The outer layer consists of the sclera, which is the white of the eye, the cornea, which is the clear domelike structure over the front of the eye, and the iris. The iris is the colored part of the eye...
by admin | Jul 11, 2024 | Advanced Open Water Diver
The Starfish, Echinaster sepositus is very common in the Mediterranean Sea. It is one of the most popular starfish to divers in that region because of its beautiful bright red color. Though, it only appears bright red if it is illuminated by an artificial light source...
by admin | Jul 11, 2024 | Advanced Open Water Diver
The SNSI System considers a night dive as a dive that takes place between sunset and sunrise. During a night dive, even if the visibility is excellent and the other conditions are considered to be perfect, the divers’ field of vision is considerably reduced....
by admin | Jul 11, 2024 | Advanced Open Water Diver
Scuba diving during the daytime is a fascinating activity that can, and often does, incite an array of emotions. Diving at night opens up a completely transformed world and amplifies these emotions. The addition of artificial light is necessary for divers to see under...
by admin | Jul 11, 2024 | Advanced Open Water Diver
This section of the SNSI Advanced Open Water Diver has focused on the various aspects of underwater navigation, including navigation using an underwater compass, natural navigating techniques and a combination of the two. Together, you, your buddy and your SNSI...
by admin | Jul 10, 2024 | Advanced Open Water Diver
On its own, the compass is useful for conducting reciprocal routes and geometric courses. However, combing compass use with natural navigation techniques opens up myriad of navigation options, and with practice, will become second nature. When you use your compass in...
