As divers, we see a lot of amazing things. Even the commonplace underwater is stuff ordinary people never even imagine. Over time, these stories become lost if never retold. We must capture the moment and chronicle these memories!

I’m asking you, dear reader, to send in your stories. In particular, I want to know, what is the coolest thing you’ve ever seen while scuba diving? It can be a creature, an object, or an event. I don’t care. Just send them to me, or email me directly at david AT thedivingblog.com by February 8th. You can even leave it in a comment here, if you like.

I will take the top stories and post them here on the blog for everyone to read. But wait, there’s more…

The top four entries will each receive a prize! The prizes are:

• SANCTUM poster
• SANCTUM baseball cap
• SANCTUM t-shirt
• SANCTUM mini-penlight

The best story will receive his or her pick of these four prizes, followed by the second, and so on. SANCTUM is a new action-thriller coming out on February 4, about a group of cave divers mapping an uncharted cave system in Australia. It’s based on explorer Andrew Wight’s own experience with cave diving, with executive producer James Cameron (TITANIC, AVATAR, do I really need to list them?). See the full synopsis below.

To receive the giveaway, you must be in the U.S. To encourage entries from those elsewhere, I will replace the aforementioned prizes with a hand-drawn penguin, illustrated by me. There are none of these in existence, so it is fair to call this item priceless.

So start remembering! Entries don’t have to be long. Bonus points if you have a picture.

SANCTUM Synopsis:
The 3D action-thriller Sanctum, from executive producer James Cameron, follows a team of underwater cave divers on a treacherous expedition to the largest, most beautiful and least accessible cave system on Earth. When a tropical storm forces them deep into the caverns, they must fight raging water, deadly terrain and creeping panic as they search for an unknown escape route to the sea.
Master diver Frank McGuire (Richard Roxburgh) has explored the South Pacific’s Esa-ala Caves for months. But when his exit is cut off in a flash flood, Frank’s team-including 17-year-old son Josh (Rhys Wakefield) and financier Carl Hurley (Ioan Gruffudd)-are forced to radically alter plans. With dwindling supplies, the crew must navigate an underwater labyrinth to make it out. Soon, they are confronted with the unavoidable question: Can they survive, or will they be trapped forever?
Shot on location off the Gold Coast in Queensland, Australia, Sanctum employs 3-D photography techniques Cameron developed to lens Avatar. Designed to operate in extreme environments, the technology used to shoot the action-thriller will bring audiences on a breathless journey across plunging cliffs and into the furthest reaches of our subterranean world.

SANCTUM Trailer

If you have a really good adventure story, go to the movie’s Facebook page and enter in their Extreme Adventure contest. Winners receive cash and a new digital camera!