commuter trains Baltimore to DC
Recently I have been commuting Baltimore to DC by public transportation. Local bus to Penn Station is $1.60. MARC train to DC Union Station is $7. I use DC metro from there.
Return is $7 but then I ride the free Circulator buses most of the way back and then a 10 min walk. I could walk a couple long blocks from Penn and then do a $1.60 bus all the way home instead. regardless, the rates work for me! For full time commuters there are weekly and monthly passes at reduced rates.
MARC runs between Union and Penn from very early morning to late night Monday to Friday. There is additional service on a separate MARC line from Camden Yards to Union Station. I use Penn as the hours and buses work better for me to there.
Rates are good through marinas but better direct to slip owners. Some don't ask & don't make a problem may involved in some arrangements. You can get deals much better than Annapolis, and on floating docks too. Sailing is not as good, nor the water you float on.