Cape and Islands NPR Stations is set of broadcast radio stations in Cape Cod, Massachusetts, United States, providing Public Broadcasting News, Talk and Entertainment shows on WCAI 90.1 FM in Woods Hole, WNAN 91.1 FM in Nantucket and WZAI 94.3 FM in Brewster, Massachusetts, as a service of 89.7 WGBH, Boston's public radio station.