It includes a large tidal harbour at the mouth of the Eatonville Brook beside several dramatic sea stacks known as the "Three Sisters".

The complex geology of Eatonville Harbour and powerful erosion forces of the Bay of Fundy tides created a series of dramatic sea stacks, stone arches and caves.

According to a Mi'kmaw legend, they were created by the mythical figure Glooscap when he turned a pack of dogs pursuing a moose into the stone towers.

[3] A shipyard at the harbour produced over 20 large vessels beginning with the 1000 ton barque Chignecto in 1874[4] and finishing with the tern schooner J. L. Ralston in 1919.

[5] Eatonville ships were noteworthy enough to attract coverage from Harpers Weekly Magazine which published an illustrated feature article on the launch of the barque Argenta at the Eaton's yard in 1890.

The mill was a large steam-powered operation which could produce 60,000 board feet (100 m3) of lumber a day, but the Eatons "preferred to cut less, waste nothing and strive for quality."

About 250 people lived in the Old Town which included a post office, two stores, a combined school and church and a blacksmith shop.

The store attracted customers from surrounding villages across eastern Cumberland County, drawn by its extensive array of imported goods.

In July 2009, the Park built an "off-the-grid" seasonal interpretation centre accessible by car from Spicers Cove along with a network of short day hikes overlooking the harbour, the Three Sisters sea stacks and a dramatic Raised beach at nearby Squally Point.

[11] The tidal harbour at Eatonville floods very quickly at high tide and can trap hikers attempting to explore the sea stacks from the beach.