"Over the last few years, we've always offered local residents the chance to ride each new section of the railway before opening to the public," says Ffestiniog and Welsh Highland General Manager Paul Lewin. "Now, as we prepare for the opening of the final section of the UK's longest heritage railway, it's the turn of people living in and around Porthmadog.
"This is also an opportune moment to remind road users and pedestrians that the level crossings at Britannia Bridge and Snowdon Street are now open for business and that they should take care to obey all road signs and traffic lights now trains will be running on a regular basis."
Trains run from Porthmadog at 1130 and 1345 on Wednesdays, Thursdays, Saturdays and Sundays until the 17th February. Those wishing to travel at the special rate should bring a utility bill containing their postcode with them to Harbour Station when booking tickets.