There is no need to go inside the Museum to find the geocache. The following information is designed to familiarize you with the Mansion and encourage you to walk the grounds and perhaps, picnic there.
"Explore a rare surviving example of late nineteenth-century architecture and design. Designed by renowned Boston architect William Ralph Emerson and built in 1878, the Eustis Estate sits on eighty acres of picturesque landscape at the base of the Blue Hills. Full of stunning, intact architectural and design details, the Eustis Estate is a historic site unlike any other in the Greater Boston area.
The Eustis Estate Museum offers a rare opportunity to explore a historic house at your own pace, in the order that you choose. Learn about its history and restoration through historic images, videos, and audio content, which you can find on touch-screen kiosks and tablets throughout the museum, or on your own smartphone or tablet. Friendly Historic New England guides are available to answer your questions on both floors of the house and in the visitor center. Traditional guided tours are also scheduled daily at 11:00 am. and 2:00 p.m., and are first-come, first-served." - Historic New England
"Unlike many of the house museums across the region, you won’t have to slowly make your way through the manor on a guided tour. Shoe covers won’t be necessary, and docents won’t gently chide you with a “Please don’t touch that,” if you overstep your boundaries. Instead, you’ll have free roam of the mansion, with the ability to not just see, but touch and feel what’s in front of you." - Boston Magazine
Below are links to three very short (less than 3 minutes!) videos about the Eustis estate and the Museum.
History Of the Museum
Creating the Museum
The Estate
