Two popular Bristol tourist attractions are to close after their owners said they could no longer afford to keep them open.
Efforts will be concentrated on Explore and the Planetarium
At-Bristol said both the Wildwalk science centre and IMAX theatre would close on Sunday.
The future of both attractions is threatened because they were not bringing in enough cash to cover costs.
The decision comes after more than 1,000 people signed an online petition. At-Bristol said it had "no option".
Efforts are now being concentrated on providing interactive exhibitions in Explore and the Planetarium within the At-Bristol complex.
A statement on At-Bristol's website said costs were running at £6m a year but income was reaching only £4.5m.
"We believe that closing Wildwalk and the IMAX Theatre, and continuing to operate Explore and the Planetarium, is the most viable option for At-Bristol to become financially sustainable," the statement said.
It added: "The only alternative to this plan would be to close the whole centre. This is a hard but necessary decision; it is not something that anyone wanted to do."