Originally Posted by
Manfred M
The buoy is something I have never used. We always dove with the standard North American red and white "diver down" flag on a float. In theory boaters were supposed to stay at least 100m / 330 ft away to give divers a safe zone to surface. I always hated it when people on SeeDoos would use the flags as a target to slalom around. The inflatable tube you describe sounds more like a rescue tube we would carry on dives so that we could carry on a dive so we could be seen should we have gotten lost. Fortunately, I never actually had to deploy one.