Out on the water, junk etc.
There was a thread a few years ago and it was interesting what you guys see when you are offshore 
Seen sharks and boat debris but the most memorable, and yet still unconfirmed what it was, was a pinkish-fleshy coloured thing shaped and sized like a human head that popped up out of the water in the chop about 30m downwind from me. First thing I thought was it was a senior person with a bathing cap having a dog paddle but more than 300m from the beach?! I looked again from behind the clew and it was gone. I turned the board around just in case it was someone in trouble but it was nowhere to be seen. I reckon it was a big sea turtle but fleshy coloured? Things that make you go "hmmm".
When I was in the navy we were in huge seas half way between OZ and NZ and saw a little tiny trailer sailor out in these seas. We hailed them but they refused assistance, the Navigator reckoned they were likely drug runners (apparently popular way to get stuff in) and radioed ahead to Eden.
North side of Home Island at Cocos.....
about ten million rubber thongs (flip-flops not kinky underwear) washed up or about to be washed up on the rocky shoreline.
Found a good left one but couldn't find one to match it 
Off Scabs, years ago I hit something and looked back and saw what I thought was a Turtle flapping. Went back and it turned out to be one of those massve Sun Fish.
Coming into port at 3 world countries is interesting. Dead cows, livestock etc.. then you spot a human arm. It wasn't waving hello.
Surfing Crescent Head point one day when a red coloured thing washed past me while sitting out the back.My curiosity made me reach out and grab it for investigation and found it was a frankfurt skin,and I was just round the corner from the sewage ocean outfall,dawwwwhhhhhhh....hotdog anyone? hahaha
Surfing black point and a seals head drifted through the line up. After that is was really uncrowded
Windsurfing off Warilla Beach I once saw a penguin surfacing. This was about 500 meters off shore.
Off Windang I was catching waves about 100 meters out and a fin appeared next to me. It scared the cr@p out of me but then saw it was a dolphin. We surfed a few waves together. That was a windsurfing highlight.
The other weekend we were at the headland overlooking the lineup. About 50 meters away from the surfers there was a pod of dolphins swimming north. The surfers were oblivious to them.
about 1k off shoalhaven heads I had a sea king helicopter circle me a few times. They flew straight over me and flattened me, I'm sure I could see the guys inside laughing.
Went sailing at south west rocks, was off the plane heading back to shore i looked down only to see a shark underneath me, my first instinct was to bare off but then i thought it was pretty cool.
ANother time i was sailing la perouse bay, there is a old pier under which was a naked girl and a photographer doing some shots.
Two stand out for me:
1) A brown snake swimming strong 2 km off shore!
2) Getting buzzed by three fighter jets at low altitude - the first flattened me and the trailing two must have seen it as they waved their wings as they went over - probably laughing hard!
Had the opportunity to visit Ashmore Reef a few years back,
saw sunken Indonesian fishing boats in the lagoon,
had sea snakes check us out whilst snorkelling
saw smashed up Turtle shells on the island
Was on a ship in the Red sea overtook a small dhow packed with lots of camels on the deck, watched the crew push a dead one over the side and keep going
Sailed over the top of a Humpback (about a metre under me, travelling across the direction I was going)...and instantly fell off!
Don't think I got wet though - fastest water-start ever.
baseball caps (ive lost 5 and found 25)
umbrella
shopping bags
semi submerged wooden palette
semi submerged wheelie bin
upside down semi submerged tinnie hull
milk crate
tennis balls
floating marijuana leaves
broom
ladies handbag
fishing rods (sometimes with angry man attached)
rock
floating cans of bourbon & coke
small pieces of concrete
and that's just currumbin, you should see what's in the broadwater!
I was in a sea kayak paddling around Ricketts Point into Beaumaris Bay. There was a skiier in the water with the boat about to take off. The spotter (lady in a bikini) wasn't doing her job as she had her back to the skiier and myself. Suddenly she dropped her bikini bottom to moon the skier then turned around to see the reaction. That's when she saw me paddling up. She was so shocked she ducked down flat on the boat floor so she wouldn't be seen by me any longer. I didn't complain though.
Over in Maui you see lots of turtles pop their heads up which scares the crap out of of you. If you hit one, which usually rips the fin out of the back of the board, you keep it to yourself and don't tell the locals...... Very very bad karma apparently...
Sailing a couple of hundred meters off Collaroy beach when the shark alarm went off. Most of us didnt worry and kept sailing. A kiwi mate shat himself and fell off.
His board had turned over and he was in such a hurry to get out of the water he clambered up and flopped onto the bottom of his baord.
After telling him it was just a small bronze whaler waggling upwind he tried to get off. In his haste he had driven his harness hook (they were small and sharp back then) right into the board.
When he eventually managed to free himself there was a substantial chunk of foam attached to the hook. Everyone else though it was funny[}:)]
There's a boat that parks off Shearwater quite often. Loud music, bunch of raucous men, and some naked ladies.
