We went before the opening day of the Cannes' Film Festival 2013 so finding the ticket office was a bit confusing. They were building a huge dome for Leonardo DiCaprio's Great Gatsby thingy in that area, so everything was hidden behind it.
Make sure you arrive at least 15 to 20 minutes before the departure time. Sometimes you'll have a school group and you may have to wait for the next boat in that case. We bought our tickets online and we saved 2 Euros each (paid 10,50€ instead of 12,50€ for the round trip ticket). It's valid for 1 month from the date of purchase. We had to show our tickets at the office and they would write it down the time of our boat. Don't throw your ticket, you'll need to show it on your way back to get on the boat.
There were lots of boats/yachts in the area and it was quite windy that day, so I was glad I was wearing a long sleeved shirt despite the warm weather. It was my first time on a boat, so I was a bit apprehensive but everything went well. However on the way back, a yacht passed us by in high-speed and it created some waves which made us feel like being in a rollercoaster...while making a couple of passengers almost sick.
There is apparently one ferry company "Trans Côte d'Azur" going to the Île Sainte-Marguerite, the island closest to Cannes and the other "Planaria" is only going to the Île Saint-Honorat.
Crossing the bay of Cannes to Sainte-Marguerite takes only 15 min but it offers very nice views from the upper deck so that one does not regret paying a rather high price for the ticket:
Return ticket: adult 12 €; reduced at 10 € for youngsters 11 - 14 yr, students 18 - 25, seniors 65 yr.
6,50 € children 5 - 10 yr; Free 5 yr.
Tickets desk and departure at the Quai Laubeuf (west of the Vieux Port). There is a large parking area.
The arrival quay Débarcadère on the island is about 400 m west of the fortress. There are two snacks and 2 restaurants in that area as well as a toilet.
Time table departure from Cannes:
07.30 h (except Sundays between 1/11 and 1/04), 09.00; 09.30 ²; 10.00; 10.30 ²; 11.00; 11.30 ²;12.00; 12.30 ²; 13.00 ²; 13.30 ²; 14.00; 14.30 ²; 15.00; 15.30 ²; 16.00; 16.30; 17.30 ².
² are optional/facultative departures depending on high or low season. Check at the ticket desk.
Return departure from Sainte-Marguerite Island:
07.45 h; 09.15; 10.15; 11.45; 12.15; 13.15 ²; 14.15; 15.15; 16.15; 17.00; 18.00 from April to September inclusive.
catch a ferry from the cannes port that will take you to ile st. marguerite, one of the 2 lerins islands. look for signs that say "ferrage - iles lerins"). it's 6 euros for a round trip and leaves every hour or so. more frequently during vacation months.
you can also hire a private boat for a more personal 15 minute ride to ile st. marguerite.
dogs are allowed in the ferries for free!
boat operators include
Estérel Chanteclair (tel:(04) 9339 1182),
Horizon 4 (tel:(04) 9298 7136),
Maritime Cannoise (tel:(04) 9338 6633) and Trans Côte D'Azur (tel:(04) 9298 7130).
Ferries from Cannes take you to Ste Marguerite / St Honorat in 15' / 30', both for 10 euro, on an enjoyable trip over the azur sea