City Break by Train with 5 & 2 Year Old?

[picturerail]

We're looking to go mid August with flexible dates travelling from London. We were originally thinking of York as I know the city well but the train fares are ridiculously expensive. I think the maximum time we'd be able to travel would be 2 - 3 hours. Any ideas?

[MindtheGappp]

Bath?

[mummymeister]

Do you have a family railcard? £26 and you will save more than that in one journey. Have to travel outside peak times but you can buy the railcard on line. Bristol? Cambridge? Another vote for Bath.

[frazzled74]

canterbury? will be cheaper than bath! cathedrals,castles, beaches and animal parks all in easy reach via public transport , ?