This in from Wightlink, in their own words. Ed
On Saturday 5th and Sunday 6th October and Saturday 19th and Sunday 20th October it has been necessary to close the Portsmouth Gunwharf to Fishbourne car ferry route overnight due to essential link span works at Fishbourne.
The last sailing from Portsmouth Gunwharf will be at 21:00 on the Saturday, recommencing at 07:00 on Sunday. The last sailing from Fishbourne will be 22:00 on the Saturday, recommencing at 08:00 on Sunday.
Additional sailings
There will be additional sailings on our Portsmouth Harbour – Ryde catamaran route and our Lymington – Yarmouth route as follows:
Portsmouth Harbour: 0015, 0315, 0515
Ryde: 0115, 0415, 0615
Lymington: 2300, 0100, 0300
Yarmouth: 0005, 0200, 0400
We’re very sorry for the inconvenience that this will cause. Passengers already booked on the affected sailings will be contacted to make alternative arrangements. If you are concerned about your sailings then please call our Call Centre on 0871 376 1000 (calls cost 7p per minute, plus network extras)