St Ives Train Station
St Ives is the end of a branch line so once you are aboard the train, it heads in one direction to Carbis Bay and then onto St Erth. Once at St Erth, you can change to head into Penzance or hop onto the train to Truro and beyond!
Penzance Train Station
Penzance is the end of the line for Great Western Trains which arrive from London Paddington. From Penzance, you can reach St Erth, change and head along the coastal branch line and arrive in St Ives within 15 minutes. Alternatively, head up to Truro and change for Falmouth or continue on to Lostwithiel and catch a bus on to Padstow.
For more information and train timetables, check out the Rome2Rio website for great travel tips.