Up to 70 jobs could be cut at the Eden Project as part of an attempt to cut costs by £2m a year, the charity that owns the attraction announced yesterday.
The Eden Trust, which owns the eco-friendly visitor attraction in St Austell, Cornwall, said in a statement that there had been fewer visitors to Cornwall in 2012 than in previous years because of the Olympics, poor weather and the recession.
"These and the enormous pressure on income in the charity sector and the challenges of fundraising in the current economic climate have made it necessary to make substantial cuts to the cost base," it said in a statement.
The charity employs 445 full-time equivalent workers and had an income of just under £31m in 2011/12.
The job losses are planned across all areas of its operation. A statutory consultation process is due to begin tomorrow.
In a letter to all staff, Sir Tim Smit, co-founder of the charity, said: "No sugar-coated pill will ease the anguish for those affected. All we can say to those of you who will be leaving is thank you so much for all you have given Eden and we hope you will depart feeling a great deal of pride in all you have achieved in creating a very special place, for now and for the future."