Members of a golf club in Australia have something more to worry about than just their swing - playing on what's thought to be the world's first shark-infested course.
Water hazards are a challenge for anyone who plays golf, but on the 14th tee at the Carbrook Golf Club in Brisbane there is another reason to be concerned.
Half a dozen man-eating bullsharks live in the lake in the centre of the course where their fins poking through the water have become a regular sight.
The sharks got onto the Queensland golf course when it flooded some years ago after a river broke its banks.
They became stranded when the water receded, but now they are thriving and even breeding.
"You can't believe how close you are...just six feet away," club general manager Scott Wagstaff said.
"There's no drama, it's become a positive thing for the golf course. They are amazing. I've become a shark lover since working here."
Although the lake is well stocked with fish, Mr Wagstaff sometimes throws in meat to encourage the sharks to come near the surface.
"I'm sure they are aggressive when you are in the water but when you are out here feeding them they are beautiful to watch," he told Sky News.
The sharks have become renowned in the region and there is even a monthly tournament called the "Shark Lake Challenge".
Golfers often pause during games for a few minutes to see if they can spot the sharks before they head off to the next tee.
The sharks, which are between 8 and 10ft long, have proved quite a hit at corporate events and their fins have even been spotted during wedding ceremonies held on the course.
Local children once jumped in the lake to retrieve lost golf balls for extra pocket money - but it is something they have not done for a while.