I'm interested in the availability of day returns. When I grew up in Connex-land, everything was a daytrip and would involve a cheap day return. Now I live elsewhere it isn't so easy. I'm conscious that there's no Day Return for the Grimsby Town-York flow, despite the fact that this could potentially be a common journey, not very long, not forever on a train - a nice day out. Admittedly, the SVR is only a couple of quid more than the single, though. Reading another thread, I noticed that there IS availability for a CDR from Liverpool Lime Street to Brighton, LM+Southern Only Via Kensington Olympia. Now for me, that wouldn't make a great day out and I suspect it probably doesn't sell very well. Why do some flows, which could potentially have considerable day-trip traffic, not have Day Returns, while some unlikely flows do? By the same chalk, what's the longest Day Return available, in terms of either mileage or time? Are they a product, like Advances, that TOCs can use as they like, or are they regulated?