You can take my game… when you pry my cold, dead fingers off the board!
Troops are not allowed to move the turn they embark or disembark, so effectively embarking/disembarking takes up their whole movement. It is possible to do both on the same turn:
Can a Galley pick up and then drop off the same units in one move?
A: Yes, that is possible. If a Galley begins on a coastline with friendly troops in that province, it could pick them up (embark), then move into an adjacent sea space (that’s 1 movement point for the Galley) and then land again on another coastline adjacent to that sea space (that’s the 2nd movement point for the Galley). The troops cannot move either before embarkation or after debarkation.