Larry Brown
A READER RECENTLY BROUGHT TO OUR ATTENTION that over the years multiple Alert Diver contributors have credited a particular dive instructor with providing training that saved their lives. Upon researching […]
Alert Diver Issue: Q4 2023
Salmon Run
IN THE ADAMS RIVER IN BRITISH COLUMBIA, huge flows of sockeye salmon swim upstream to complete their life cycle, marked by the compelling need to return to their birthplace to […]
Wildfires and Breathing-Gas Contamination
WITH WILDFIRES RAGING IN CANADA, ITALY, GREECE, THE U.S., and elsewhere, divers and dive operators have called DAN Medical Services and DAN Safety Services with concerns about whether the smoke […]
Una-Una: A Hidden Paradise
Everything changed for Una-Una on July 14, 1983, when a volcanic eruption destroyed the central hub of Indonesia’s Togean Islands in central Sulawesi. Lava covered 90 percent of the island, and thick, black smoke rose into the sky more than 9 miles high. The Indonesian Navy had evacuated all 7,100 inhabitants when the volcano gave signs of its impending eruption, preventing any loss of life.
