A new train timetable that sees six more trains run on a Sunday between Aberystwyth and Shrewsbury has begun.
Transport for Wales announced the move in October and it came into effect from Sunday, 15 December.
The new timetable sees the total number of Sunday services on the Cambrian Service between Aberystwyth and Shrewsbury increase from 16 to 22.
There are now 11 Sunday services from Shrewsbury to Aberystwyth and 11 in the opposite direction.
It is part of a country-wide slew of improvements to Sunday services.
The timetable has also seen “additional time built in” on Cambrian Line services “for when Bow Street Station is officially built and open”.
The exact date of the opening of Bow Street station is still not known.
The single service between Machynlleth and Pwllheli has been increased to five in each direction as part of the upgrades.
Customer experience director for Transport for Wales, Colin Lea, said: “We’ve committed to giving customers the service they deserve on a Sunday and are delighted to be able to make these improvements.
“Some lines which never had a Sunday service before, will now be connected, giving greater leisure and economic benefits to so many areas.
“A huge amount of hard work has gone into developing this timetable for our customers and while there have been challenges on the way, we are pleased to get this over the line.
“We’ve seen some fantastic collaboration with our partners in Network Rail in securing access for earlier and later services, by moving planned maintenance times and I’d like to thank all involved for their hard work.”
The new timetable between Aberystwyth and Shrewsbury on Sundays will see trains leave Aber at: 8.30, 9.30, 10.30, 11.30, 12.29, 13.30, 14.30, 15.28, 16.30, 17.28 and 19.30.
And trains from Shrewsbury to Aberystwyth on Sundays will leave at: 8.30, 10.27, 11.28, 13.28, 14.28, 15.28, 16.29, 17.27, 18.28, 19.27 and 21.28.