Dozens of partygoers were stranded overnight on a tiny uninhabited island after being cut off by the rising tide.

They had walked across the causeway to Cramond Island in the Firth of Forth on Saturday afternoon after the party was advertised on the Bebo social networking site.

But by late evening 160 of them were cut off from the mainland when the tide came in and covered the causeway.

A rescue operation was mounted by Forth Coastguard and the Kinghorn lifeboat crew.

Some of the revellers were taken off the island by boat late on Saturday night, while about 70 managed to walk to the mainland when the tide went out again between 0130 BST and 0530 BST.

The remainder were picked up by boat when the island was again cut off from the mainland by the tide at 0530 BST.

A coastguard spokesman said: "Lots of people went over for the party and forgot that the tide was coming in and got cut off.

"We got 999 calls from people calling in a panic because they could not get off the island.

"They were getting cold and it was starting to rain and lots of them were just in T-shirts because it was warm yesterday."

Some people suffered minor injuries from trips and bumps, but there were no serious injuries.

The Bebo page of 24-year-old Stephen Zaccardelli, a DJ who helped organise the event, featured a warning to anyone planning on attending the party that they would need to leave the island by 2000 BST on Saturday if they did not want to spend the night there.

Mr Zaccardelli also wrote that there would be lighting and trained first aiders on Cramond, and encouraged revellers to use the provided bin bags to tidy up after themselves.

Cramond island is about a mile from the mainland and lies off the village of Cramond near Edinburgh.

Bebo - so few members these days that they'll all fit on a small island

Myspace users could probably have their AGM in a phonebox now

Would that be Lily Allen and her fans?