Planning a multi-generation girls trip cruise - We'll be in port in early October and would like some recommendations about excursions. Our ages are between 50-75, active and not so active. I'd like to avoid the bus tours with all of the cruise passengers. Maybe something in a small group. Had been planning to do a whale watching trip, but I'm now thinking that it would be a shame to miss Acadia. Would like to make this a special day and to take in as much as we can. Any specific recommendations for tours, guides, itineraries, etc. Thanks!