Peter_C
Contributor
It also looks like you lost your snorkel somewhere, since you are in the open water, apparently. You should always have a snorkel with you when diving in the open water, because if you get separated from the boat, or you need to make a rough-beach entry, and your tank is empty, a snorkel will be your only salvation. Caves are different, but you don't look like you are properly geared up for a cave either (no cave lights).
Funny I do not know a single person that dives a long hose that uses a snorkel. At least not with a tank or two on their back. Snorkels are NOT DIR, but gas management IS! Not that this was a DIR discussion.
The snorkel gets in the way of deploying the long hose for air share instances. If stowed in a pocket it would be considered acceptable to bring along, otherwise keep the snorkel handy for snorkeling, when not diving. Plus a snorkel hanging off the side of a mask is an entanglement hazard and gives one more thing that could pull your mask off.