Yes. While most boats traveling in Nantucket Sound avoid Horseshoe Shoal due to its shallow depths, the wind turbines will be separated six to nine football fields apart allowing ample navigation for the boats that do travel into the shoal. The wind turbines will each have an amber light toward the base of the turbines which will be visible to nearby boats in poor visibility conditions and there will be two to four foghorns in the wind farm that will be heard from a distance of two miles. The United States Coast Guard is currently reviewing Cape Wind for maritime safety.

Yes. The Federal Aviation Administration (FAA) has issued a Determination of No Hazard for Cape Wind. Some of the wind turbines will have a red flashing light on top of the turbine towers that will be visible to aircraft in the area. Uplighting will be used to minimize the visibility of these lights from shore. Nighttime visual simulations of Cape Wind are available in the US Army Corps of Engineers Draft Environmental Impact Statement.