The Rockland harbormaster's office is located at the Rockland Public Landing, at the foot of Harbor Park. The Harbormaster's office is open year round, 8 to 4 Monday through Thursday, and in the summer at least those hours seven days a week. They enjoy visitors, but may be out of the office; on the water, running errands, up at city hall or working on floats and maintenance. If it's important, you'd be well advised to call before stopping in.
The Harbormaster operates the Public Landing and can help with information and advice on moorings in Rockland Harbor. We put the Public Landing docks in around May 15th and they are hauled out around October 15th.
The official address of the Rockland Harbormaster is 271 South Main Street, though the mailing address is 270 Pleasant Street, Rockland, ME 04841.