Islanders will not be able to access the Lighthouse walkway while maintenance work is carried out.
Repairs to the main electrical cable supplying power to the Castle breakwater Lighthouse begin today (10 October).
The work is expected to last three weeks and means islanders will not be able to use the walkway.
Head of Port Operations, Jerome Davis says the work is essential:
“As we exit our busiest time of the year, our focus is on maintaining the highest level of safety and care for all those travelling in and around Guernsey waters.
We acknowledge that this may cause some inconvenience to the public and thank islanders for their patience and understanding whilst our team conduct these repairs."
The Castle bridge will also be undergoing an inspection, at the same time.
Access to Castle Cornet remains unaffected.

A new tax, more 'proportionate' to wealth, to be put to Guernsey's States
Guernsey gives £75k for Islands Unlimited inter-islands sailings
Guernsey tax package to raise more States income but protect low earners
Changes to make Guernsey's buses more reliable
Aurigny plane makes emergency landing after leaving Guernsey
New festival part of Guernsey's Seafront Sunday
Guernsey firefighters tackle round-island walk in full kit
No provider awarded subsidy for seasonal inter-island ferry service