I consider buying a saver day pass, and I have a question about taking mountain railways with saver day pass.
I saw the condition 'Half Fare travelcard customers can buy tickets at a reduced price for journeys with numerous mountain railways and connecting trains. Customers without a Half Fare travelcard will have to pay the full price for extension tickets.' on the explaination of saver day pass.
If I don't have half fare card and buy saver day pass, is it impossible to use every mountain railways for free or is there any discount?
Or can I use the mountain railways which is real line (not the dot line) on GA validity map? such as from Interlaken Ost to Grindelwald.
And could you tell me what's the validity map of saver day pass?