Welcome to the world of the Manx Shearwater, the great secret of the Pembrokeshire islands. Nocturnal and mysterious, Dream Island has over 100 thousand of them.
They are normally almost impossible to see, but not only will we see them, we will also join the scientists using the latest hi tech field equipment to get to the bottom of the mystery still surrounding much of their behaviour.
More top news
The world record attempt will raise money for the foundation set up in memory of the Olympic gold medallist, who died in May 2013.
In today's Newsweek, Carl talks about what the 'No' vote in the Scottish Referendum could mean for Wales and the impact of legal highs.
England manager talent spotting at Swansea City v Southampton at the Liberty Stadium