Guernsey Harbours is set to receive the biggest make-over in history.
£190million is expected to be spent over the next ten years, £80million of which will need to come from new funding.
A consultation is underway to gather islanders' views.
Plans for new charges at Guernsey harbours are to be unveiled later today.
Prices will be on the rise as a result of the current decline in their usage and are deemed vital to ensure the sustainability of the harbours in the future.
Guernsey is Europe's largest tender port for cruise liners, with cruise ship passengers injecting £5m annually into Guernsey's economy.
Guernsey Harbours will be seeking the view of the Bailiwick's public at a meeting this morning on the proposed changes to pricing at St Peter Port and St Sampson's.
98% of all freight coming into the island goes through Guernsey Harbours, who deliver 330,000 tonnes of lifeline supplies to the Bailiwick every year.
The weekend event coincides with International Pride Month and the 51st anniversary of the Stonewall riots.
The scheme has been backed by the island's Lieutenant-Governor, and is the first of its kind in the Channel Islands.
Sunny spells and isolated light showers. After dusk fair spells with isolated showers.