The spring sailing schedule for Washington State Ferries begins Sunday, March 27. More sailings will be added to popular routes and the international route between Anacortes and Sidney, B.C., starts again.

There will be one round-trip sailing per day between Anacortes and Sidney, B.C. To make reservations for travel on this route, visit www.wsdot.wa.gov/ferries or call 511.

Ferry service increases include:

• Weekend inter-island vessel in the San Juan Islands.

• Eight hours of afternoon service Monday through Thursday between Anacortes and the San Juan Islands.

• Adjusted sailing times to improve schedule reliability in the San Juan Islands.

The complete 2011 spring sailing schedule is available at www.wsdot.com/ferries/schedule. The spring schedule will be in effect March 27 through June 18.