Firefighters have been called to Harcourt Sands in Ryde, for the second day in a row.
Two pumps from Ryde are at the incident, having been alerted at 4.59pm.
The Isle of Wight Fire and Rescue Service says crews have been called to an 'unattended bonfire'.
It is the second day in a row firefighters have been at the abandoned site.
Yesterday (Tuesday), a chalet was alight.