Ferry breaks are simple, if the crossing you are to take is shorter than a daily rest reduced or regular just remember to be at the exit port and parked in the lanes no more than 12 hours from your starting time ( this is to include your 1 hour allowed movements ).
Park in the lanes and place on rest, end country and ferry mode ( this will clear your first movement onto the ship ), once onboard press rest and ferry mode, if the total time of the first two breaks is 11hrs drive off and carry on with your journey, if not then drive off find parking and complete your rest, so long as you’ve taken a total of 11 hours plus any movements within your 24 hour spread over and you have not exceeded your max daily driving limit its legal.
Start 05:00
Deliveries / collections
Arrive port 16:30
In lanes 16:45
Rest / end country / ferry mode
Ferry 20:30 ( 15 mins movement )
Rest / ferry mode
Arrive 0:30
Disembark 0:45 and find parking ( max 45 mins drive allowed )
Park complete remainder of 11 hour rest
Start 04:45 other work / begin country