WIGHTLINK has advised customers of changes to services on Sunday due to the BUPA Great South Run.
In Portsmouth between 9.30am and 12.30pm roads will be closed, subject to police control.
Wightlink advised passengers to allow extra time for their journeys and passengers travelling on the 10am car ferry crossing from Portsmouth must be at the terminal by 9.15am at the latest.
The amended car ferry sailings on Sunday are:
From Portsmouth: 1am (GMT), 3am, 5am, 6am, 7am, 7.50am, 9am, 10am, 12.30pm, 1pm, then normal service.
From Fishbourne: 2am (GMT), 4am, 6am, 7am, 8am, 8.50am, 10am*, 11am*, 12pm*, 1.30pm, 2pm, then normal service.
*The 10am, 11am and 12pm sailings from Fishbourne will arrive at Portsmouth International Port and no foot passengers will be carried on these crossings.