The Island House by Nancy Thayer

Nantucket , what a place to spend the summer. Courtney had been going there with her college roommate for years and continued to make the trek every year even after she had settled into her career as an English professor.  This summer was a big one because the matriarch was turning 60. Lots of people, many different dynamics, high feelings, and memories from the past. All of these meld together for a wonderful read to take you into summer.