Debris from a landslip on the East Cowes Esplanade, which occurred in April 2014, cannot be moved without risking further landslides in the area.
According to Isle of Wight Council, the site is being monitored but has yet to stabilise.
A spokesperson for the council said: “The removal of debris at this stage could result in further landslides in the current location and cause new landslides nearby; therefore, the council cannot make any plans for the area until the land has stabilised and it is able to fully understand the costs and benefits of any actions it may take.
“The section of sea wall near to the landslide has been inspected by our engineer, who has found it to be structurally sound.”
The area has been closed to pedestrians and vehicles since the landslip occurred.