We loved our week long stay in Tremont. We had 8 adults and 4 kids, ages 2 to 5. The younger kids slept comfortably in the main floor twin/trundle right off the kitchen, and the 4 and 5 year olds slept in the two twin room upstairs. They all enjoyed walking along the shore collecting sand dollars and playing outside on the grassy lawn. The 4 adult couples each had their own room and bath, as we rented the main house and the adjoining cottage. Everyone was super comfy. We enjoyed large meals at the dinner table for all of us, and the kitchen was well stocked with all the pots, pans, dishes, etc that we needed. The location was perfect for us - a calm quiet neighborhood where the kids could run about, and a short walk to the water's rocky edge where we kayaked and searched for shells.
We loved the nearby town, we had coffee, and homemade pies, and ate at two locations for lobster, both of which were great, one was Mainely-delite and Thurston's. Both were really easy to navigate with our large group.
We didn't get to do the carriage rides in Acadia - you need to book those in advance We did a great boat tour at a place just north of Bar Harbor Bar Harbor is a great place for meals and drinks and shopping, or just walking about! It was a great trip and our place in Tremont was the perfect home base.