From Greenock, Bus Station bus to Dalmuir then train to Helensburgh Central. 1 h 35 min £8. From Greenock, West Stewart Street (Stance 5) line 547 bus to Gourock Ferry Terminal, ferry to Kilcreggan Pier (Tourist information), then line 316 bus to Helensburgh Railway Station. 1 h 54 min £11. From Greenock, Bus Station bus to Dalmuir, Swindon Street then bus to Helensburgh Railway Station. 2 h 13 min £7. From Greenock taxi to Helensburgh. 37 min £52.