He burst into consciousness on a stone slab, coughing and sputtering water from his lungs. With a deep, desperate breath he screamed out in agony as his muscles tensed and his bones cracked.
The wave of pain passed leaving him panting, trying to remember how he gotten here, but every attempt to remember was met with stabbing pain in his head.
After some time, he slowly stood and took stock of his situation. He was on a coast with gulls flittering around rocky crags and drift wood lining the shore.
His eyes widened as he looked down to his feet and saw a perfect imprint of his body, as though the rock had been clay when he landed there.
Who is 'he'? He has a name and presumably he remembers that. That's how he'd think of himself.
If his bones cracked, how did he stand up? That threw me right back out of the suspension of disbelief.
... And its usually a bad idea to start with a character waking up. Maybe you could skip to the next event (does he wander around his surroundings? Interact with anyone?) and we can get bits and pieces of his awakening throughout whatever is going on...
He burst into consciousness [I think it might be okay to just say he came awake (or if he's been revived to say: he returned to consciousness). Burst doesn't show or tell me anything.]
With a deep, desperate breath he screamed out [use of "with a deep" here cannot allow for a scream at the same time. Deep implies breathing in. Perhaps say: After a deep and desperate breath...]
[Next I might combine the theme of the last four sentences, but using his sense of hearing first, then sight, then touch. Example: The wave of pain passed. He was left panting as the pain returned each time he tried to recall any memory of how he had gotten here. He gave up and lay still. He could hear waves crashing to shore. The shrill laughter of seagulls pierced the air. Were they mocking him?
He opened his eyes...(I think you get the idea of where I'm going. Email me if you want me to see more)]
Keep writing!
Driftwood is one word (in my experience).
I'd read on.