Flight
It's an airport! It's small and weird! Wahoo!
Train
The 128/University Park Station is the closest Amtrak Stop and Commuter Rail Station to the Courtyard Marriot Hotel in Westwood, as well as the Eustis Estate. This is a 15 minute/4.5 mile drive from the Eustis Estate.
Train
For those flying in, the Braintree Logan Express will deliver you near the Hyatt Place Boston/Braintree, which is 4 miles from the Eustis Estate. This leaves directly from Logan Airport
Train
For those flying in, the 128/University Park Station on the Providence/Stoughton Commuter Rail Line is a 7 minute walk from the Courtyard Marriot Hotel in Westwood. Board the Silver Line at Logan to South Station, then take the Outbound Providence/Stoughton Commuter Rail.
Train
The Amtrak Acela Train has a stop at 128/University Park (RTE) in Westwood, which is close to the Courtyard Marriot Hotel. For out of state guests, you can board in DC (WAS, Union Station), New Jersey (gross, NWK, Penn Station), and New York (NYP, Moynihan Station).
Train
The Amtrak Northeast Regional Train has a stop at 128/University Park (RTE) in Westwood, which is close to the Courtyard Marriot Hotel. For out of state guests, you can board seemingly literally anywhere, beginning in Virginia. This has more stops than the Amtrak Acela, but it's remarkably cheaper.
Hotel
2.2 miles from the Eustis Estate 3 mile drive from the Commuter Rail at University Park Station (for those flying in from Logan) https://zola.hotelplanner.com/EventPage6480471
Hotel
4.1 miles from the Eustis Estate 10 minute walk from the Braintree Logan Express (for those flying in from Logan) https://zola.hotelplanner.com/EventPage6480471
House Or Rental
If you'd prefer to not stay in a hotel!
Rental Car
Boston is terrible for rideshare, but...