Alert Diver Category: Features

Dauin is a peaceful beach village about 30 minutes by car from Dumaguete City (and its airport), and the area also features near the top of Philippine must-dive lists.

What is a safe carbon monoxide (CO) level in our breathing air? Learn the effects of CO poisoning and how the limits are derived.

Catalina is often considered a quick day trip off the California coast. With little rain and picturesque views, however, Catalina could be your next adventure.

There are many standards and guidelines for safe limits, including the results of various occupational health and safety studies on the effects of extended exposure. For diving, the situation is different. So what are safe limits for recreational diving with much shorter exposures than navy divers? Particularly, what is a safe limit for carbon dioxide (CO2), the most abundant potential contaminant?

Tenerife is the largest of the eight islands that form the Canary Islands archipelago, which is part of Spain but located off the coast of Africa near Morocco and Western Sahara. Often called the “island of eternal spring” because of its sunshine and pleasant climate throughout the entire year, Tenerife is reliable and affordable, and the diving is good all year. For travelers who are not interested in diving or water sports, Tenerife offers cultural, culinary, entertainment and leisure activities as well as numerous museums and historical sites.

See a bonus photo gallery of images from Santa Catalina Island.