Locate & Follow The Boat Sean Is On
- Ride your horse to the ridge overlooking the river, north-east of your position.
- Follow the boat along the river.
- Use your binoculars to confirm if Sean is on the boat once it has been docked.
This is a Linear Mission Sequence
As this sequence does not have any combat, all you need to do is follow the path of the boat, and use your binoculars to see if Sean is indeed in that boat.