Little do most beachgoers suspect what lies behind the fence and wall of greenery a few yards away. This 35-acre spread named after the Bonnet lily is a trip back in time to 1921, when artist and collector Frederic Clay Bartlett built a gracious two-story manse in a kind of Caribbean plantation style, filled with art and surrounded by lush tropical gardens, where he wintered with a first, then a second wife (the latter of whom, Evelyn, some of the friendly and talkative volunteer guides even met). Visits are by 90-minute guided tour only, and a fascinating one at that.