An international environmental charity says its expedition to record the breeding patterns of grey seals on the Isles of Scilly is proving a success.
September is an important month for grey seal pups
Earthwatch has reassured islanders that it is working with the Isles of Scilly Wildlife Trust to ensure volunteers are aware of the sensitive habitats.
Concerns had been raised by some locals who feared the group would be staying in areas where camping is banned.
Volunteers have paid £500 each week to take part in the four-week survey.
The trust says it is monitoring their activity and has been issuing special permits.
So far, 15 volunteers have each completed a week on the project, which is currently half way through.
The groups have been making daily trips by to the uninhabited islands, where they have already photographed the first dozen grey seal pups born this season.