AS any parent will know, building the perfect sandcastle is no easy task.

But as these incredible pictures show, sandcastle artist Calvin Seibert has managed it to perfection. He has created these astonishing geometric structures out of one of the world’s most delicate mediums.

Despite the extreme lightness of sand, Mr Seibert’s impressive castles look like they are made from concrete.

As reported by the Huffington Post, his collection of sandcastles has been created over the past six years. Commenting on his Flickr page, Mr Seibert, also known as ‘box-builder’ said: ‘I always have these ideas that I want to try but somehow in the attempt to get something done by the end of the day I turn towards my old standby solutions.

‘I need to spend 6 weeks on the beach all at once. As it is I only get a day here and there and go whole years without building anything. If I could manage that I might get somewhere new.’

The talented artist also comments about the difficulties of producing his art on a beach. Problems with flies have previously caused him to abandon one project. For another piece, he revealed how grey days helped because the sand doesn’t dry out too fast and he does not get sunburnt.                        –MO