Wildlife officers try to save rare whale stranded in lagoon on Great Barrier Reef

The whale, believed to be an endangered Antarctic minke, has been trapped in a reef lagoon off Cairns for three weeks

Marine experts are trying to save a whale which has been stranded in a reef lagoon off Cairns for at least three weeks.

Wildlife officers have gone to Elford reef in a bid to coax the whale, believed to be between six and eight metres long, to safety.