A.W.
Hi J. - How about Stowe, VT? I haven't actually been yet but am headed there in July for a wedding and from my research for the trip it seems amazing. There are plenty of outdoor activities during the summer (golf, hiking, canoeing, etc) along with spas and relaxing poolside. There also seem to be good options for dining and enjoying a nice grown-up dinner! Happy planning and happy anniversary! :) A.