Darryl Grimason ends his underwater expedition of Northern Ireland's coastline in spectacular style by swimming with sharks.

Darryl Grimason dives into the dark waters of Lough Erne in County Fermanagh and the deep waters off County Donegal's coast in search of aquatic adventure.

Darryl Grimason continues his Waterworld expedition and dives into Strangford Lough to reveal the hidden life beneath its surface.

Darryl Grimason continues his ocean odyssey diving into the 'deep blue' to find out what lies beneath the waters of County Antrim's north coast.

Darryl Grimason takes a breath-taking tour of shipwrecks and discovers the vivid marine life that lies below the spectacular seacliffs of Rathlin Island.