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i've chased OW students up from "only" 12m in the past, trying to keep them down as they panic and bolt, but these days i won't do it. there are a couple of key things to consider: - if you injure yourself chasing the panicked diver up, then you're unlikely to be able to help them very much...

i'll second this - i did the fundies class in my big old paddle fins, but when i returned to splits & tried some of the more subtle kicks, the splits felt kind of "sloppy". i'm not keen to go back to using the old mares fins, but might try the stumpy turtle-fin type jetfins: diving's not...

this is a quote from Trev Jackson on diveoz: so, the "great things" you've heard seem true - the divers were properly logged in, their overdue status was noticed very quickly into the piece, and the proper plan was invoked resulting in their rescue.

i learned that even "simple" dives at "boring" sites can be great! lots of people poo-poo the wreck of the centurion, but it was great viz (15-20m), tons of fishlife, and good fun

can you be sure the patient will reach the surface in the right spot? will people on the surface be looking for the patient? will the people on the surface be able to reach the patient? will the people on the surface realise the patient is unconscious? i'd suggest that checking for...

the pocket mask should stay on the patient & protect from splashing. not sure if mouth-to-snorkel gives you this as effectively. if you had to deflate your BC a bit to perform the task then that's what you should do. position yourself appropriately - with pocket mask the ideal position for me...

you can find weedies at the deeper reef at shelly beach - not against either of the walls. you need to plan for about a 1hr dive to see them & water clarity hasn't been good on the occasions i've been there. unfortunately i won't be at shelly this sunday, else i'd take you to see. maybe...

something to try on a shallow dive: just stop, do nothing, don't try to adjust your position & see what happens. chances are you'll tip to one side and/or up & down. reposition your weights accordingly as other people of described. also - as you dive more, you will probably find you'll be...

no mantas in sydney, sorry. eagle rays, maybe. bare island is a good spot for shore dives; you may be able to find weedy seadragons there, and it is possible to take a bus to the site (although with gear that might be tough). there's no dive store there so the logistics of tanks & where to...

in NSW (australia) it is permitted to take purple sea urchins with a bag limit of 10 per day whilst using SCUBA given this, if we're diving in a non-protected area, i will occasionally demonstrate how the blue groper feeds by shucking a single urchin out from under a rock ledge where the groper...

this has everything to do with technique and experience & nothing to do with the fins themselves. the OW students i help with make just as much mess with blade fins as with split. keep feet up & do modified flutter and there's no problem.

fwiw the developer of the "split fin" design* (nature's wing fin design) claims to have looked to aquatic mammals for inspiration. sea lions for example certainly have fins which look more like a split fin than a rigid paddle. * this one company licenses the design to all of the...

thanks folks - the coil & feed 2nd stage seems to be the most obvious way; i'll give that a try & see how it looks. if anyone has a pic of their gear in "stowed" state i'd still like to see it: preferably single tank.

hi folks, i went out on a boat today with a GUE-style rig for the first time, and have been trying to figure out the best way to stow the long (7') hose when it's not in use. the boat is a rigid inflatable (RIB) surveyed for 12 divers: gear is stowed on a central platform and we sit on...

i probably missed something, but why would she need to use doubles ?

my wife has a total right hip replacement (thanks motorbikes!) and wasn't a strong swimmer to start with. when she got a pair of oceanic v12's (one of the early split fin models) i had to buy a pair too since she became able to out-distance me too easily ! split fins in general are not good if...

i use my snorkel whilst waiting (often interminably) in fair-sized swell for students to get off the beach or off the boat. i'd rather not be spitting out salt water or using up air from my tank the whole time, and lying on my back doesn't lend well to observing what's going on (or keeping out...

try practicing breaststroke without scuba gear. the kick for that is frog kick. http://www.gatorswimteam.org/2004/5/breaststroke.html with fins you can allow yourself to glide for a long time with your legs extended before retracting for the next kick what agency is this ? i don't recall this...

any DIR thoughts on the dive rite thigh pocket as an alternative? <http://diveriteexpress.com/bcs/pockets.shtml#thigh> - i have a belt pocket but need weight on the belt too & they don't go together very well :P the (tekpocket) shorts are just too freaky for me: all that neoprene around the...

it wouldn't hurt to have oxygen. also - check your local laws about this sort of thing (it may be a requirement) the only thing to bear in mind is whether the boat has suitable facilities to make diving comfortable; experienced divers can cope with getting in & out of difficult craft, but...