Reconnect with extended family in a place that isn’t your own backyard. Three hours north of the city, Kenoza Hall (rates from $499) is a 22-room lakeside retreat — a grown-up summer camp surrounded by serene woodland. The onetime boardinghouse dating back to the 1880s has been reimagined by husband-and-wife design team Foster Supply Hospitality, who’ve added custom wallpaper and soaking tubs while keeping historic details like the original hardwood floors.