Just looking up singles from Taplow to Weymouth Off Peak for 7 July with a Senior Railcarda.
On a couple of services I get get a very reasonable ^8.70 using GWR▸ to Reading Cross Country to Basingstoke or Winchester and SWT▸ onto Weymouth. But it is an Advance ticket only. Which part of the journey is Advanced?
However, the cheapest Off Peak Single seems to be ^52.90 either via Basingstoke or Westbury.
What on earth is going on are there any splits?
Taplow to Swindon is 16.80; Swindon to Weymouth is 16.90 via Yeovil; with senior card = 22.30. For an extra 10p, if you get tired of Weymouth by the end of the day, you could return to somewhere like Melksham ...