He takes a small outboard boat across a lake and then takes a bus to Split.
I remember the scene where Guy tells his buddy (a merc as well) not to shoot the kid and the kid blows up his buddy and then Guy shoots the next kid or something like that...do you remember?
Yes, the kid that throws the grenade is a young girl. Guy later pops a young boy.
Barnes & Noble has it for $12.99. You get free shipping on any order over $25.00, so buy it and another. Pretty Village, Pretty flame is also about Bosnia and $12.99.