With social distancing being de rigueur, boat charters for intimate gatherings will be in high demand. Northrop & Johnson’s charters for lavish, personalized itineraries leave from Newport, R.I. We suggest its 198-foot, six-cabin Blue Moon yacht that accommodates 12 guests. Barton & Gray Mariners Club, which offers memberships to charter its exquisite fleet of Hinckley boats, also returns for season. northropandjohnson.com. bartonandgray.com