It appears that inspector_blakey may have confused you with his statement that you
must buy your tickets from a staffed station. If you are buying a Day Return then you are allowed to start, break/resume, or end your journey at any intermediate station on your chosen route. You can board at Devonport and ask the guard to sell you Off Peak Day Returns (
CDRs▸ ) from Plymouth (
PLY» ) to Eden Project (XFJ). These will be available on his portable ticket machine. Priced at ^25 for an Adult and ^13 for a Child and inclusive of transfer bus and entrance fee. These are valid on any train timed to depart Plymouth after 0900 Mon-Fri or any train at the weekend, therefore the first train you can catch from Devonport is the 0924 Mon-Fri arriving St Austell 1022. The bus departs the station forecourt at 1035 and is the Western Greyhound service 527, arriving at Eden at 1057. Saturday departure times to Eden from Devenport are 0820 arriving 0957 or 0923 arriving 1057.
If you want to arrive at Eden earlier on a weekday (It opens at 10am) then you will need to purchase Anytime Day Returns (SDRs) at ^30.50 for an Adult and ^15.75 for a Child. you can then board the 0823 from Devonport arriving at Eden for 0957.
On a Sunday the earliest you can get to Eden from Devonport is 1250, with a bit of a wait for a bus from St Austell. There is a bus timed to depart St Austell at 1140 which is the same time as the train arrives!!!! So if you are travelling on a Sunday then it's best if you start from Plymouth with departures at 0905 or 0925.
Returning around 5pm Mon- Fri you have a bus leaving Eden at 1630 which connects into a train at St Austell at 1700 arriving Plymouth 1758. On a Sat you have a bus departing 1600 with the train leaving St Austell at 1651 arriving Plymouth 1750. For Sun you have a bus leaving 1605 for a train at St Austell leaving 1710 arriving Plymouth 1807. Bit of a wait for the train on a Sunday - there is an earlier one but it leaves 1 minute after the 1605 bus is due to arrive!!!
The buses maybe either Western Greyhound's 527 or First Devon and Cornwall's 101.
My apologies if I confused you by mentioning Advance Purchase tickets (ADV). I did not mean buying
any ticket type in advance which you are free to do. If you do go to Plymouth station to get your Day Return tickets in advance of your travel date remember to specify the date you wish to travel when you buy.
These must be bought from a staffed station, you can't get them online (and there's no point booking in advance with a journey that short anyway) so buy them at Plymouth on the day of travel.
Not quite true blakey. You can buy tickets online for The Eden Project, but strangely only from Mixing Deck based websites (East Coast, Southern, London Midland etc.). Obviously this needs to be done sufficiently far in advance of travel date for them to be delivered or at least 2 hours before travel if collecting from a stations ticket machine. There are however no Advance Purchase (ADV) tickets to Eden Project.