Option #1: Free Silver Line bus (South Station SL1 -> 2 Stops to Congress Street)
Option #2: Ride-sharing / taxis are a very short ride.
Additional rooms at the SASE conference rate are unfortunately no longer available
Reserve
~2-minute walk$269 + tax & fees
~5-minute walk$259 + tax & fees
~8-minute walk$279 + tax & fees
~12-minute walk$239 + tax & fees