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Is it an optical illusion from a buoy behind the WS or is there a harpoon stuck in it? Which explains why it couldn't get away.... That upper section seems to be far too rigid to be a mooring line.

XL would be a mens size: Size Chart | Special Fit Information See if the measurements for the XL match.

I've also found a few masks over the years but not one of them was worth investing time on even though they didn't look like they'd been in the water that long. In all cases the silicone had hardened to the point where they wouldn't keep a face seal. Or maybe the fact that they wouldn't keep a...

This was discussed in the DIY section a few years back. Various people were trying a loop of bicycle inner tube from one exhaust vent, round the back of the neck and to the other vent. Cut a couple of big holes at the back and smaller ones along the sides - to avoid siphon effect that would...

Did you read my post? I was giving advice to other readers to open the light immediately if it happens to them - while still at depth. Obviously your case was a lost cause. You won't see things rust UW in just a few minutes.

The key word there is most. My wife has a very narrow face - she has huge difficulty finding a mask that will fit well. Before we found a couple of brands that did work well we purchased a lot of masks. They would appear to be OK in the shop but in practice.... Our dive cupboard probably has as...

Assuming that you haven't got a nice helpful manufacturer like above: I made the same comment recently in a camera thread. What does the damage is the energy from the batteries causing electrolysis. If you see your light flooding at depth, open it immediately and get the batteries out. When you...

I think it's hard to imagine something spookier than this. If done well just describing this in text should raise a few hairs... :D

Google deepstaria enigmatica When they appear (very rare): The creature looks like nothing seen before, with speculators suggesting it is everything from a jellyfish to the remains of a whale placenta.

Not so much the quality of the gear as the complexity of the gear. At the recreational level it's most unlikely. Here in Brazil, some years back (August 2002), there was a very famous cave diving incident where the rebreathers of both members of a team failed in precisely the same manner (very...

Why would you not be able to use your PADI certification? The Cuban dive operators would accept it and they don't inform PADI that you're diving with them.

I do a half-way. After mounting I close the valve and blip/pulse the inflator to drop the manometer to just over 100bar. This serves a multiple role. I always ensure at least some air in my BC, I test that the inflator isn't sticking and I leave enough air in the system to serve as a leak check...

The problem is that they are significantly less efficient than when used in air. This is because the refractive index of air is 1, water is 1.33 and common crown glass is 1.52. Of course if you don't want to be bothered with an air-space then the solution is to use a heavy flint glass lens (1.6...

Depending on the source there are between 2000 and 10000 wrecks off the coast of Brazil. The best site to start is: Naufrágio The highest concentration of wrecks in recreational depths is in Recife, state of Pernambuco but you're not going at a good time of the year for this. Ideal is from...

You really need an airspace to get any decent magnification; water and glass are just too similar. There are many DIY designs on SB and elsewhere: example: The Sea Slug Forum - Underwater Magnifying Lens

I use aluminum wheel paint and a fine brush - it reflects really well UW.

Have you ever used a headlamp? I have one sitting in my junk box. It was used for precisely one night dive and it had to be one of the most nauseous experiences I ever had. It attracted every creepy crawly small creature around and they covered my mask, crawled under my hood and into my...

I dive with a lot of people that are on FB but not on SB and I don't really feel comfortable posting anything that may identify or expose my friends on an open site like SB. So the types of post I do on the 2 sites are quite different.

Looking at pictures of the Canon housing for the G15 it follows the style of the G12. So it probably has the same well-known issue with the mould lines. http://www.scubaboard.com/forums/canon-corner/315202-canon-housing-leaks-easy-diy-fix.html Did you inspect the groove where the o-ring sits...

Excluding those shore dives from a man-made access (everything from a nice staircase with hand-rails to carpeted concrete steps), natural entry shore dives do need experience to evaluate risk level. Before getting back into scuba I did many years of solo snorkeling and even without the heavy...