BC Ferries is advising their customers on the Sunshine Coast and Nanaimo to plan ahead for this weekend.

Deborah Marshall with B.C Ferries says the RBC GranFondo Whistler cycling event is happening on Saturday and traffic modifications will affect people who are traveling through the Horseshoe Bay terminal.

Marshall says Bowen Island customers who are planning to get on the 6:30 and 8:35 ferry Saturday morning will also be affected.